Bearing air supply device, water vapor compressor, energy conversion equipment and control method

Abstract

The present invention discloses a bearing air supply device, a water vapor compressor, an energy conversion device and a control method. The bearing air supply device is applied to a water vapor compressor, and includes: an air compressor for compressing external air and discharging it; an air storage tank, whose first inlet end is connected to the exhaust port of the air compressor; a constant pressure tank, which includes: a movable partition for separating the constant pressure tank into an air supply chamber and a return air chamber; a return spring, whose first end is fixed to the bottom of the constant pressure tank and whose second end is fixed to the movable partition; the air supply chamber, whose inlet end is connected to the outlet end of the air storage tank, and whose outlet end is connected to the bearing chamber of the water vapor compressor; the return air chamber, whose inlet end is connected to the bearing chamber, and whose outlet end is connected to the second inlet end of the air storage tank. Through the present invention, the stability of the air supply pressure can be improved, thereby extending the service life of the bearing of the water vapor compressor.

Description

Technical Field

[0001] The present invention relates to the field of electrical technology, and in particular to a bearing air supply device, a water vapor compressor, an energy conversion device and a control method. Background Art

[0002] In the bearing air supply system of the water vapor compressor, the stability of the air supply pressure is a key factor in maintaining the stable operation of the bearing and ensuring the service life of the bearing. The bearing air supply of the water vapor compressor is supplied by the air compressor after compressing the external ordinary air. The air from the exhaust port of the air compressor enters the bearing of the water vapor compressor through the radial air intake and axial air intake pipes to support the compressor bearing. However, if the pressure of the compressed air supplied by the air compressor is unstable, it is easy to cause unstable operation of the bearing, causing bearing damage and shortening the service life of the bearing.

[0003] With regard to the problem in the prior art that the air supply to the bearings of the steam compressor is unstable, which may easily lead to unstable operation of the bearings, causing bearing damage and thus shortening the service life of the bearings, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of the present invention provide a bearing air supply device, a steam compressor, an energy conversion device and a control method to solve the problem in the prior art that the bearing air supply of the steam compressor is unstable, which easily leads to unstable bearing operation, causes bearing damage and thus shortens the service life of the bearing.

[0005] In order to solve the above technical problems, the present invention provides a bearing air supply device, which is applied to a water vapor compressor. The bearing air supply device comprises:

[0006] Air compressor, used to compress external air and discharge it;

[0007] An air storage tank, a first inlet end of which is connected to an exhaust port of the air compressor;

[0008] A constant pressure tank, comprising: a movable partition for dividing the constant pressure tank into an air supply chamber and an air return chamber; a return spring, a first end of which is fixed to the bottom of the constant pressure tank, and a second end of which is fixed to the movable partition;

[0009] The air supply chamber has an inlet end connected to the outlet end of the air storage tank, and an outlet end connected to the bearing chamber of the water vapor compressor;

[0010] The inlet end of the air return chamber is connected to the bearing chamber, and the outlet end of the air return chamber is connected to the second inlet end of the air storage tank.

[0011] Furthermore, the constant pressure tank also includes:

[0012] A sealing ring is arranged at a contact position between the movable partition and the inner wall of the constant pressure tank.

[0013] Furthermore, there are multiple return springs, and the multiple return springs are evenly distributed and fixed on the movable partition.

[0014] Furthermore, the device also includes:

[0015] The magnetic pump is arranged between the outlet end of the gas storage tank and the inlet end of the gas supply chamber of the constant pressure tank.

[0016] Furthermore, the device also includes:

[0017] A drying filter is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

[0018] Furthermore, the device also includes:

[0019] The electrostatic precipitator is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

[0020] Furthermore, the device also includes:

[0021] The air supply solenoid valve is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

[0022] Furthermore, the device also includes:

[0023] The pressure sensor is arranged in the gas storage tank and is used to detect the pressure in the gas storage tank.

[0024] The present invention also provides a water vapor compressor, comprising the above-mentioned bearing air supply device.

[0025] The present invention also provides an energy conversion device, comprising the above-mentioned water vapor compressor.

[0026] The present invention also provides a control method, which is applied to the above-mentioned bearing air supply device, and the control method comprises:

[0027] Get the pressure in the gas tank;

[0028] The operation state of the magnetic pump is controlled according to the pressure in the gas storage tank; wherein the magnetic pump is arranged between the outlet end of the gas storage tank and the inlet end of the gas supply chamber of the constant pressure tank.

[0029] Further, controlling the operating state of the magnetic pump according to the pressure in the gas storage tank includes:

[0030] Determining whether the pressure in the gas storage tank is greater than a first threshold;

[0031] If yes, controlling the magnetic pump to operate;

[0032] If not, the magnetic pump is controlled to stop running.

[0033] Further, after controlling the magnetic pump to operate, the method further comprises:

[0034] The operating state of the air compressor and the opening and closing of the air supply solenoid valve are controlled according to the pressure in the air storage tank; wherein the air supply solenoid valve is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

[0035] Furthermore, the operating state of the air compressor and the opening and closing of the air supply solenoid valve are controlled according to the pressure in the air storage tank, including:

[0036] Determine whether the pressure in the gas storage tank is greater than a second threshold; wherein the second threshold is greater than the first threshold;

[0037] If yes, the air compressor is controlled to stop running, and the air supply solenoid valve is controlled to close;

[0038] If not, the air compressor is controlled to run, and the air supply solenoid valve is controlled to open.

[0039] The present invention also provides a computer-readable storage medium on which a computer program is stored, and the program implements the above control method when executed by a processor.

[0040] The present invention also provides an electronic device, comprising:

[0041] one or more processors;

[0042] The storage device is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned control method.

[0043] By applying the technical solution of the present invention, a constant pressure tank is arranged in the bearing chamber of the air storage tank and the water vapor compressor, and the constant pressure tank is divided into an air supply chamber and an air return chamber by a movable partition; a reset spring is arranged, and the first end of the reset spring is fixed to the bottom of the constant pressure tank, and the second end is fixed to the movable partition. When the air supply pressure of the air supply chamber is high, the volume of the air supply chamber is increased by moving the movable partition toward the return air chamber, thereby reducing the air supply pressure; when the air supply pressure of the air supply chamber is low, the volume of the air supply chamber is reduced by moving the movable partition toward the air supply chamber, thereby increasing the air supply pressure. Through the above solution, the stability of the air supply pressure is improved, the problem that unstable air supply easily leads to unstable bearing operation, causes bearing damage and shortens the service life of the bearing is solved, and the service life of the bearing of the water vapor compressor is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a structural diagram of a bearing air supply device according to an embodiment of the present invention;

[0045] Figure 2 is a schematic diagram of an electrostatic precipitator according to an embodiment of the present invention;

[0046] Figure 3 is a flow chart of a control method according to an embodiment of the present invention;

[0047] Figure 4 FIG. 4 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all 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.

[0049] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0050] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0051] It should be understood that, although the terms first, second, etc. may be used to describe thresholds in embodiments of the present invention, these thresholds should not be limited to these terms. These terms are only used to distinguish different thresholds. For example, without departing from the scope of embodiments of the present invention, the first threshold may also be referred to as the second threshold, and similarly, the second threshold may also be referred to as the first threshold.

[0052] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0053] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0054] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0055] Example 1

[0056] The bearing air supply of the steam compressor is provided by the air compressor after compressing the external ordinary air. The air coming out from the exhaust port of the air compressor enters the bearing of the steam compressor through the radial air intake pipe and the axial air intake pipe respectively to support the compressor bearing. However, if the pressure of the compressed air supplied by the air compressor is unstable, it is easy to cause unstable operation of the bearing, resulting in bearing damage and shortening the service life of the bearing.

[0057] In view of the above problems in the prior art, this embodiment provides a bearing air supply device, which is applied to a water vapor compressor. Figure 1 is a structural diagram of a bearing air supply device according to an embodiment of the present invention, as shown in Figure 1 As shown, the bearing air supply device comprises:

[0058] An air compressor 1 is used to compress external air and then discharge it; an air storage tank 2, a first inlet end of which is connected to the exhaust port of the air compressor 1; a constant pressure tank 3, which includes: a movable partition 31, used to separate the constant pressure tank 3 into an air supply chamber 32 and a return air chamber 33; a return spring 34, a first end of which is fixed to the bottom of the constant pressure tank 3, and a second end of which is fixed to the movable partition 31; the inlet end of the air supply chamber 32 is connected to the outlet end of the air storage tank, and the outlet end is connected to the bearing chamber of the water vapor compressor 4, and the bearing chamber refers to a relatively closed environment where the bearings of the water vapor compressor are located; the return air chamber 33, the inlet end of which is connected to the bearing chamber, and the outlet end of which is connected to the second inlet end of the air storage tank 2.

[0059] In this embodiment, a movable partition is provided in the constant pressure tank to separate the constant pressure tank into an air supply chamber and an air return chamber. A return spring is fixed on the movable partition, and the other end of the return spring is fixed to the bottom of the constant pressure tank 3. The thrust F of the high pressure air on the upper surface of the movable partition 供 =P 供 *S, where P 供 is the pressure of the air supply room, S is the force area on the upper surface of the movable partition). The thrust F of the high-pressure air on the lower surface of the movable partition 回 =P 回 *S 下 , where P 回 is the pressure of the return air chamber, S 下 is the force area of ​​the lower surface of the movable partition, and the elastic force of the spring is F 弹簧 .

[0060] When F 供 >F 回 +F 弹簧 When the force on the upper surface of the movable partition is greater than the force on the lower surface of the partition, the movable partition moves downward, causing the volume of the air supply chamber to increase, thereby reducing the air supply pressure P of the air supply chamber to ensure that the air supply pressure always remains constant.

[0061] When F 供 <F 回 +F 弹簧 When the force on the lower surface of the movable partition is greater than the force on the upper surface of the partition, the movable partition moves upward, causing the volume of the air supply chamber to decrease, thereby increasing the air supply pressure of the air supply chamber to ensure that the air supply pressure always remains constant.

[0062] The bearing air supply device of this embodiment is provided with a constant pressure tank 3 in the bearing chamber of the air storage tank and the water vapor compressor 4, and the constant pressure tank 3 is divided into an air supply chamber 32 and an air return chamber 33 by a movable partition 31; a reset spring 34 is provided, and a first end of the reset spring 34 is fixed to the bottom of the constant pressure tank 3, and a second end is fixed to the movable partition 31. When the air supply pressure of the air supply chamber 32 is high, the volume of the air supply chamber 32 is increased by moving the movable partition toward the air return chamber 33, so that the air supply pressure is reduced; when the air supply pressure of the air supply chamber 32 is low, the volume of the air supply chamber 32 is reduced by moving the movable partition 31 toward the air supply chamber 32, so that the air supply pressure is increased. Through the above scheme, the stability of the air supply pressure is improved, the problem of unstable air supply, which easily leads to unstable bearing operation, causes bearing damage and shortens the service life of the bearing is solved, and the service life of the bearing of the water vapor compressor is extended.

[0063] If there is air leakage between the air supply chamber 32 and the air return chamber 33, constant pressure air supply cannot be guaranteed. Therefore, in order to achieve a better sealing effect, Figure 1 As shown, the constant pressure tank 3 further includes: a sealing ring 35 , which is arranged at the contact position between the movable partition 31 and the inner wall of the constant pressure tank 3 .

[0064] If the movable partition is tilted, the pressure balance between the air supply chamber and the return air chamber will be destroyed, and constant pressure air supply cannot be performed. Therefore, the movable partition needs to be kept horizontal. In order to achieve the above purpose, the number of the return springs is multiple, and the multiple return springs are evenly distributed and fixed on the movable partition to keep the movable partition horizontal.

[0065] Since the bearings need continuous air supply, the air compressor is required to be always on, which greatly increases the operating load of the unit. In order to reduce the load of the air compressor, Figure 1 As shown, the bearing air supply device further includes: a magnetic pump 5, which is arranged between the outlet end of the air storage tank 2 and the inlet end of the air supply chamber of the constant pressure tank 3. When the pressure of the air storage tank 1 is high, the magnetic pump 5 can be turned on to pump high-pressure air out to the bearing chamber of the water vapor compressor.

[0066] If there is too much moisture in the air supply, it will cause bearing damage and reduce the service life of the bearing. In order to eliminate the moisture in the air supply, such as Figure 1 As shown, the bearing air supply device further includes: a drying filter 6, which is arranged between the exhaust port of the compressor and the first inlet end of the air storage tank.

[0067] If there are too many dust particles in the air supply, it will also cause bearing damage and reduce the service life of the bearing. In order to eliminate the dust particles in the air supply, such as Figure 1 As shown, the bearing air supply device further includes: an electrostatic precipitator 7 , which is arranged between the exhaust port of the air compressor 1 and the first inlet end of the air storage tank 2 .

[0068] Figure 2 Schematic diagram of an electrostatic precipitator according to an embodiment of the present invention, Figure 2 As shown, in the electrostatic precipitator, the dust particles in the high-pressure air first pass through the charging zone to be ionized and adsorb electrons; after the charged dust particles enter the dust collecting area, they move in a complex trajectory under the combined action of the electric field force, gravity, the traction of the wind field, and the Coulomb force between the particles and are adsorbed on the positive electrode.

[0069] When the pressure of the gas tank 2 is very high, the air discharged from the gas tank 2 can meet the gas supply pressure requirement after passing through the magnetic pump 5. At this time, the air compressor 1 can be turned off to further reduce the load of the compressor. In order to realize the controllable opening and closing of the air path between the air compressor 1 and the gas tank 2, as shown in FIG. Figure 1 As shown, the bearing air supply device further includes: an air supply solenoid valve 8, which is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

[0070] It should be noted that, if the above solutions are combined so that the bearing air supply device includes the drying filter 6, the electrostatic precipitator 7 and the air supply solenoid valve 8 at the same time, the arrangement order of the above three components can be arbitrary.

[0071] According to the above, the pressure in the gas tank is the basis for controlling the opening and closing of the gas supply solenoid valve 8 and controlling whether the magnetic pump 5 is running. Therefore, in order to detect the pressure in the gas tank, Figure 1 As shown, the bearing air supply device further includes: a pressure sensor 9, which is arranged in the air storage tank 2 and is used to detect the pressure in the air storage tank 2.

[0072] After the bearing air supply device of the above embodiment starts to operate, the outside air is sucked in by the air compressor 1 and compressed into high-pressure air. After the high-pressure air is discharged from the air compressor 1, it passes through the drying filter 6 and the electrostatic dust collector 7 to remove various impurities such as moisture and dust particles, and enters the air storage tank 2 through the air supply solenoid valve 8.

[0073] When the pressure sensor detects that the pressure P in the air storage tank 2 is greater than the set pressure P1, the magnetic pump 5 is controlled to start, and the high-pressure air in the air storage tank is pumped into the air supply chamber 32 of the constant pressure tank 3 by the magnetic pump 5. After the high-pressure air comes out of the air supply chamber 32 of the constant pressure tank 3, it enters the water vapor compressor bearing through the radial air intake and axial air intake two-way air intake pipes to support the compressor bearing. Then, it returns to the return air chamber 33 of the constant pressure tank 3 through the radial return air and axial return air return two-way air return pipes. After the high-pressure air comes out of the return air chamber 33 of the constant pressure tank 3, it finally returns to the air storage tank 2 to complete an air supply cycle.

[0074] When the pressure sensor detects that the pressure P in the air storage tank 2 is greater than the set pressure P1 but not greater than the set pressure P2, the air compressor 1 and the air supply solenoid valve 8 are controlled to supplement pure high-pressure air for the bearing air supply device.

[0075] When the pressure sensor detects that the pressure P in the air storage tank 2 is greater than the set pressure P2, the air compressor 1 and the air supply solenoid valve 8 are controlled to be closed. At this time, the magnetic pump 5 is used as a power source to keep the entire bearing air supply device running continuously.

[0076] Example 2

[0077] This embodiment provides a water vapor compressor, including the bearing air supply device of the above embodiment, for achieving constant pressure air supply.

[0078] Example 3

[0079] This embodiment provides an energy conversion device, including the water vapor compressor of the above embodiment.

[0080] In some embodiments of the present invention, the energy conversion device includes at least one of the following: an air conditioner, a generator.

[0081] Example 4

[0082] This embodiment provides a control method, which is applied to the bearing air supply device of the above embodiment. Figure 3 is a flow chart of a control method according to an embodiment of the present invention, as shown in Figure 3 As shown, the control method includes:

[0083] S101, obtaining the pressure in the gas storage tank.

[0084] S102, controlling the operating state of the magnetic pump according to the pressure in the gas storage tank; wherein the magnetic pump is arranged between the outlet end of the gas storage tank and the inlet end of the gas supply chamber of the constant pressure tank.

[0085] In order to share the load of the air compressor, when the pressure of the air tank is high, the magnetic pump between the outlet of the air tank and the inlet of the air supply chamber of the constant pressure tank can be turned on to pump high-pressure air to the bearing chamber of the water vapor compressor. Therefore, it is necessary to obtain the pressure in the air tank and control the operating state of the magnetic pump according to the pressure in the air tank.

[0086] The control method of this embodiment controls the operating state of the magnetic pump according to the pressure in the air tank. When the pressure in the air tank is high, the magnetic pump between the outlet end of the air tank and the inlet end of the air supply chamber of the constant pressure tank can be turned on to pump the high-pressure air out to the bearing chamber of the water vapor compressor to share the load of the air compressor.

[0087] In order to achieve accurate control of the start-up timing of the magnetic pump, ensure the air supply pressure while sharing the load of the air compressor, and control the operating state of the magnetic pump according to the pressure in the air tank, including: determining whether the pressure in the air tank is greater than a first threshold; if so, controlling the magnetic pump to operate; if not, controlling the magnetic pump to stop operating.

[0088] When the pressure in the gas tank is very high, the air discharged from the gas tank can meet the gas supply pressure requirement after passing through the magnetic pump. In order to further reduce the load of the air compressor, the air compressor can be turned off. Therefore, after controlling the operation of the magnetic pump, the above control method also includes: controlling the operating state of the air compressor and the opening and closing of the gas supply solenoid valve according to the pressure in the gas tank; wherein the gas supply solenoid valve is arranged between the exhaust port of the air compressor and the first inlet end of the gas tank. Specifically, controlling the operating state of the air compressor and the opening and closing of the gas supply solenoid valve according to the pressure in the gas tank includes: judging whether the pressure in the gas tank is greater than the second threshold value; wherein the second threshold value is greater than the first threshold value; if yes, controlling the air compressor to stop running, and controlling the gas supply solenoid valve to close; if not, controlling the air compressor to run, and controlling the gas supply solenoid valve to open.

[0089] Example 5

[0090] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above control method is implemented.

[0091] Example 6

[0092] This embodiment provides an electronic device, including:

[0093] one or more processors;

[0094] The storage device is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned control method.

[0095] Figure 4 FIG. 1 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Figure 4 As shown, the device includes:

[0096] One or more processors 410 and memory 420, Figure 4 A processor 410 is taken as an example.

[0097] The electronic device may further include: an input device 430 and an output device 440 .

[0098] The processor 410, the memory 420, the input device 430 and the output device 440 may be connected via a bus or other means. Figure 4 The example of connecting through bus is taken in the following.

[0099] The memory 420 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the control method in the embodiment of the present invention. The processor 410 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 420, that is, implementing the above method embodiment.

[0100] The memory 420 may include a program storage area and a data storage area, wherein the program storage area may store an application required for operating the device and at least one function; the data storage area may store data created according to the use of the control method, etc. In addition, the memory 420 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0101] The input device 430 can receive input digital or character information and generate key signal input related to user settings and function control of the electronic device. The output device 440 can include a display device such as a display screen.

[0102] The one or more modules are stored in the memory 420, and when executed by the one or more processors 410, perform the control method in any of the above method embodiments.

[0103] The electronic device can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0104] The electronic device of the embodiment of the present invention exists in various forms, including but not limited to:

[0105] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0106] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing functions, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0107] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, smart toys, and portable car navigation devices.

[0108] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to the general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, manageability, etc.

[0109] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0110] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bearing air supply device, applied to a water vapor compressor, characterized in that: The device comprises: Air compressor, used to compress external air and discharge it; An air storage tank, a first inlet end of which is connected to an exhaust port of the air compressor; A constant pressure tank, comprising: a movable partition for dividing the constant pressure tank into an air supply chamber and an air return chamber; a return spring, a first end of which is fixed to the bottom of the constant pressure tank, and a second end of which is fixed to the movable partition; The air supply chamber has an inlet end connected to the outlet end of the air storage tank, and an outlet end connected to the bearing chamber of the water vapor compressor; The return air chamber has an inlet end connected to the bearing chamber, and an outlet end connected to the second inlet end of the air storage tank; The magnetic pump is arranged between the outlet end of the gas storage tank and the inlet end of the gas supply chamber of the constant pressure tank.

2. The device according to claim 1, characterized in that The constant pressure tank also includes: A sealing ring is arranged at a contact position between the movable partition and the inner wall of the constant pressure tank.

3. The device according to claim 1, characterized in that There are multiple return springs, and the multiple return springs are evenly distributed and fixed on the movable partition.

4. The device according to claim 1, characterized in that The device also includes: A drying filter is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

5. The device according to claim 1, characterized in that The device also includes: The electrostatic precipitator is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

6. The device according to claim 1, characterized in that The device also includes: The air supply solenoid valve is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

7. The device according to claim 1, characterized in that The device also includes: The pressure sensor is arranged in the gas storage tank and is used to detect the pressure in the gas storage tank.

8. A water vapor compressor, characterized in that: A bearing air supply device comprising the bearing air supply device according to any one of claims 1 to 7.

9. An energy conversion device, characterized in that: Comprising the water vapor compressor as described in claim 8.

10. A control method, applied to the bearing air supply device according to any one of claims 1 to 7, characterized in that: The control method comprises: Get the pressure in the gas tank; The operation state of the magnetic pump is controlled according to the pressure in the gas storage tank; wherein the magnetic pump is arranged between the outlet end of the gas storage tank and the inlet end of the gas supply chamber of the constant pressure tank.

11. The control method according to claim 10, characterized in that: Controlling the operating state of the magnetic pump according to the pressure in the gas storage tank includes: Determining whether the pressure in the gas storage tank is greater than a first threshold; If yes, controlling the magnetic pump to operate; If not, the magnetic pump is controlled to stop running.

12. The control method according to claim 11, characterized in that: After controlling the magnetic pump to operate, the method further includes: The operating state of the air compressor and the opening and closing of the air supply solenoid valve are controlled according to the pressure in the air storage tank; wherein the air supply solenoid valve is arranged between the exhaust port of the air compressor and the first inlet end of the air storage tank.

13. The control method according to claim 12, characterized in that: Controlling the operating state of the air compressor and the opening and closing of the air supply solenoid valve according to the pressure in the air storage tank includes: Determine whether the pressure in the gas storage tank is greater than a second threshold; wherein the second threshold is greater than the first threshold; If yes, the air compressor is controlled to stop running, and the air supply solenoid valve is controlled to close; If not, the air compressor is controlled to run, and the air supply solenoid valve is controlled to open.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 10 to 13 is implemented.

15. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 10 to 13.

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