Energy-saving vacuum cabinet and use method thereof

Abstract

The invention discloses an energy-saving type vacuum cabinet and a using method thereof, and relates to the technical field of vacuum, the energy-saving type vacuum cabinet comprises a mounting cabinet body, a first partition plate is fixedly mounted in the mounting cabinet body, a second partition plate is fixedly connected in the mounting cabinet body, a sealing plate is mounted on the front surface of the mounting cabinet body, and the sealing plate is used for sealing a vacuum chamber a and a vacuum chamber b respectively; the vacuum pump set is installed at the bottom of an inner cavity of the installation cabinet body, the communicating pipe set is arranged among the vacuum pump set, the vacuum cavity a and the vacuum cavity b, and the vacuum cavity a and the vacuum cavity b form a negative pressure auxiliary source through the communicating pipe set. According to the invention, by utilizing the cooperative use mode of the mounting cabinet body, the vacuum pump set and the connecting pipe set, when the vacuum pump set performs vacuum negative pressure operation on the vacuum chamber a or the vacuum chamber b, the vacuum chamber a and the vacuum chamber b can be a negative pressure auxiliary source under the action of the connecting pipe set, so that the energy consumption during the operation of the vacuum pump set is reduced, and the energy consumption is further reduced.

Description

Technical Field

[0001] This invention relates to the field of vacuum technology, and in particular to an energy-saving vacuum cabinet and its usage method. Background Technology

[0002] In the field of vacuum technology, vacuum cabinets, as key equipment for achieving a vacuum environment, are widely used in many fields such as electronics, chemical industry, food preservation, and scientific research experiments. Their main function is to create a negative pressure environment in the internal chamber through vacuuming operations to meet the special requirements of material storage, chemical reactions, and product processing for ambient air pressure.

[0003] Currently, traditional vacuum cabinets typically employ a single vacuum chamber design, equipped with an independent vacuum pump system for evacuation. In actual use, to achieve the target vacuum level, the vacuum pump needs to run continuously to overcome the pressure difference between the inside and outside of the chamber. This is particularly energy-intensive during the initial evacuation phase and when maintaining the vacuum state. Furthermore, when the chamber is opened, gas needs to be supplied to the chamber to balance the internal and external pressures before opening the chamber door. This not only leads to the loss of negative pressure energy within the chamber but also necessitates vacuum extraction when performing negative pressure operations again. This fails to utilize the pressure difference between chambers for energy recovery, further exacerbating energy waste and thus exhibiting certain drawbacks. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving vacuum cabinet and its usage method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving vacuum cabinet and its method of use, comprising:

[0006] Install the cabinet;

[0007] The first partition is fixedly installed inside the mounting cabinet;

[0008] The second partition is fixedly connected to the interior of the mounting cabinet. The bottom of the second partition is fixedly connected to the first partition. The second partition is used to divide the top of the first partition into vacuum chamber a and vacuum chamber b.

[0009] A sealing plate is installed on the front of the mounting cabinet, and the sealing plate is used to seal vacuum chamber a and vacuum chamber b respectively;

[0010] A vacuum pump unit, wherein the vacuum pump unit is installed at the bottom of the inner cavity of the mounting cabinet;

[0011] A connecting pipe assembly is provided between the vacuum pump assembly, vacuum chamber a, and vacuum chamber b. Vacuum chamber a and vacuum chamber b form a negative pressure auxiliary source for each other through the connecting pipe assembly.

[0012] Preferably, the vacuum pump assembly includes:

[0013] The mounting cylinder is fixedly installed at the bottom of the inner cavity of the mounting cabinet;

[0014] End cap, the end cap being fixedly installed at the end of the mounting cylinder;

[0015] A piston is fitted inside a mounting cylinder and is used to divide the interior of the mounting cylinder into cylinder chamber c and cylinder chamber d. Cylinder chamber c is connected to vacuum chamber a through a connecting pipe assembly, and cylinder chamber d is connected to vacuum chamber b through a connecting pipe assembly.

[0016] A hydraulic cylinder is fixedly installed on one of the end caps, and the output end of the hydraulic cylinder is connected to the piston drive.

[0017] Preferably, the connectivity component includes:

[0018] The first tube is fixedly installed on the second partition plate. The first tube is used to connect the inner cavities of vacuum chamber a and vacuum chamber b to each other. A first solenoid valve is fixedly installed on the first tube.

[0019] The second tube is fixedly installed on the top of one side of the end cap. A second solenoid valve is fixedly installed on the second tube. One of the second tubes is connected to the inner cavity of vacuum chamber a, and the other second tube is connected to the inner cavity of vacuum chamber b.

[0020] A filter assembly is disposed inside vacuum chamber a and vacuum chamber b respectively, and the filter assembly is used to filter the air inside the second tube body;

[0021] A locking assembly is disposed inside vacuum chamber a and vacuum chamber b respectively, and the locking assembly is used to lock and limit the filter assembly.

[0022] Preferably, the connectivity component further includes:

[0023] The third tube is fixedly installed at the bottom of one side of the end cap, and a second solenoid valve is fixedly installed on the third tube.

[0024] The first air pressure sensor is fixedly installed on one side of the end cover. The first air pressure sensor is used to detect the air pressure inside cylinder cavity c and cylinder cavity d respectively.

[0025] The second pressure sensor is fixedly installed on the top of the mounting cabinet. The second pressure sensor is used to detect the air pressure inside vacuum chamber a and vacuum chamber b, respectively.

[0026] Preferably, the filtering component includes:

[0027] The mounting housing is slidably engaged with one side of the inner cavity of vacuum chamber a;

[0028] A slot is formed at the bottom of the back of the mounting housing, and the top of the outer wall of the second tube is slidably engaged with the inside of the slot;

[0029] An air filter element, which is fitted inside the mounting housing;

[0030] Air vents are provided on the top of one side of the mounting housing, and are located on the top of the air filter element.

[0031] Preferably, the filtering component further includes:

[0032] A support block is fixedly connected to the inside of the mounting housing and is located between the air filter and the second tube.

[0033] The first limiting block is slidably sleeved inside the mounting housing. The first limiting block is located at the top of the air filter element. Both the top of the first limiting block and the bearing block are provided with through holes.

[0034] The second limiting block is slidably sleeved inside the mounting housing, and the top of the second limiting block is in contact with the top of the inner cavity of the vacuum chamber a.

[0035] A fixing rod is fixedly connected between the first limiting block and the second limiting block.

[0036] Preferably, the filtering component further includes:

[0037] A positioning plate is fixedly installed inside the vacuum chamber a, and the positioning plate is located on the back of the mounting housing;

[0038] A sealing gasket is fixedly connected to the bottom of the front side of the positioning plate, and the sealing gasket is used to cover and seal the groove.

[0039] A positioning rod is fixedly connected to the back of the mounting housing. A positioning hole is provided on the front of the positioning plate. The outer wall of the positioning rod is slidably engaged with the inner cavity of the positioning hole.

[0040] Preferably, the locking component includes:

[0041] The first connecting plate is slidably engaged inside the vacuum chamber a, and the front side of the first connecting plate is in contact with the sealing plate.

[0042] A connecting rod, one end of which is fixedly connected to the first connecting plate;

[0043] A positioning block is fixedly connected to the end of the connecting rod, and the positioning block is pressed against the front of the mounting housing.

[0044] Preferably, the locking component further includes:

[0045] The second connecting plate is slidably mounted on the outside of the connecting rod;

[0046] A fixing block is fixedly connected to one side of the inner wall of the vacuum chamber a, and the fixing block is located between the second connecting plate and the first connecting plate;

[0047] A limiting spring is slidably sleeved on the outside of the connecting rod, and the limiting spring is located between the second connecting plate and the positioning block;

[0048] A locking plate, one end of which is fixedly connected to a first connecting plate, and locking holes are provided on the front of the fixing block and the front of the second connecting plate. The outer wall of the locking plate is slidably engaged with the inner cavity of the locking hole.

[0049] Another objective of this invention is to provide an energy-saving vacuum cabinet and its method of use, comprising the following specific steps:

[0050] Step 1: When it is necessary to put the vacuum chamber a into a negative pressure state, first close the sealing plate on the vacuum chamber a, so that the first solenoid valve and the two third solenoid valves are closed, and the two second solenoid valves are open. The hydraulic cylinder drives the piston to move, the inner cavity of the cylinder chamber c increases, and the cylinder chamber c draws gas from the inside of the vacuum chamber a through the second tube, thus realizing the vacuum evacuation step of the vacuum chamber a.

[0051] Step 2: Then close the second solenoid valve on the second tube connecting vacuum chamber a, causing the hydraulic cylinder to move the piston back to its original position until the air pressure inside cylinder c is balanced with the external air pressure. Then open the third solenoid valve on the third tube connecting cylinder c, and the piston continues to move back to its original position. The gas inside cylinder c is discharged through the third tube. Then close the third solenoid valve and open the second solenoid valve to perform the vacuum evacuation step of vacuum chamber a again, extracting the gas inside vacuum chamber a until the air pressure inside vacuum chamber a reaches the set value. Then close both second solenoid valves, thus completing the vacuum negative pressure operation inside vacuum chamber a.

[0052] Step 3: When it is necessary to put the vacuum chamber b into a negative pressure state, first close the sealing plate on the vacuum chamber b, then open the first solenoid valve to balance the gas pressure inside the vacuum chamber a and the vacuum chamber b, then close the first solenoid valve, and then the hydraulic cylinder drives the piston to move, the inner cavity of the cylinder d increases, so that the cylinder d draws the gas inside the vacuum chamber b through the second tube, and draws the gas inside the vacuum chamber b to realize the vacuum evacuation step of the vacuum chamber a. At this time, the vacuum chamber a acts as a negative pressure auxiliary source for piston movement until the gas pressure inside the vacuum chamber a is balanced with the external gas pressure, then the sealing plate on the vacuum chamber a can be opened;

[0053] Step 4: Then close the second solenoid valve on the second tube connecting vacuum chamber a, causing the hydraulic cylinder to move the piston back to its original position until the air pressure inside cylinder chamber d is balanced with the external air pressure. Then open the third solenoid valve on the third tube connecting cylinder chamber d, and the piston continues to move back to its original position. The gas inside cylinder chamber d is discharged through the third tube. Then close the third solenoid valve and open the second solenoid valve to perform the vacuum evacuation step of vacuum chamber d again, extracting the gas inside vacuum chamber d until the air pressure inside vacuum chamber d reaches the set value. Then close both second solenoid valves, thus completing the vacuum negative pressure operation inside vacuum chamber d.

[0054] The technical effects and advantages of this invention are as follows:

[0055] (1) The present invention utilizes the combined use of the mounting cabinet, vacuum pump group and connecting pipe group. The interior of the mounting cabinet forms vacuum chamber a and vacuum chamber b under the action of the first partition and the second partition. Thus, when the vacuum pump group performs vacuum negative pressure operation on vacuum chamber a or vacuum chamber b, under the action of the connecting pipe group, vacuum chamber a and vacuum chamber b can serve as negative pressure auxiliary sources for each other, thereby reducing the energy consumption of the vacuum pump group during operation and thus reducing energy consumption.

[0056] (2) The present invention utilizes the combined use of the second tube, filter assembly, locking assembly and vacuum pump assembly. When the vacuum pump assembly extracts air from the vacuum chamber a or vacuum chamber b, the filter assembly can filter the air entering the vacuum pump assembly, preventing dust and impurities from entering the vacuum pump assembly, thereby improving the service life of the vacuum pump assembly. Furthermore, the locking assembly and sealing plate ensure the ease of installation of the filter assembly. Attached Figure Description

[0057] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0058] Figure 2 This is a schematic diagram of the internal structure of the front of the present invention;

[0059] Figure 3This is a schematic diagram of the internal structure of the cylinder mounting section of the present invention.

[0060] Figure 4 This is a schematic diagram of the overall structure of the cylinder block of the present invention;

[0061] Figure 5 This is a schematic diagram of the internal structure of the mounting housing of the present invention.

[0062] Figure 6 This is a schematic diagram of the internal structure of the side of the mounting cabinet portion of the present invention.

[0063] In the diagram: 1. Mounting cabinet; 2. First partition; 3. Second partition; 4. Sealing plate; 5. Vacuum pump assembly; 51. Mounting cylinder; 52. End cap; 53. Piston; 54. Hydraulic cylinder; 61. First pipe body; 62. First solenoid valve; 63. Second pipe body; 64. Second solenoid valve; 65. Filter assembly; 651. Mounting housing; 652. Air filter element; 653. Bearing block; 654. First limiting block; 655. Second limiting block; 656. Fixing rod; 657. Positioning plate; 658. Positioning rod; 66. Locking assembly; 661. First connecting plate; 662. Connecting rod; 663. Positioning block; 664. Second connecting plate; 665. Fixing block; 666. Locking plate; 667. Limiting spring; 67. Third pipe body; 68. Third valve body; 69. First air pressure sensor; 610. Second air pressure sensor. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] This invention provides, for example Figures 1-6 An energy-saving vacuum cabinet and its usage method are shown.

[0066] Example 1: Includes a mounting cabinet 1, a first partition 2, a second partition 3, a sealing plate 4, a vacuum pump assembly 5, and a connecting pipe assembly. The first partition 2 is fixedly installed inside the mounting cabinet 1, and the second partition 3 is fixedly connected to the inside of the mounting cabinet 1. The bottom of the second partition 3 is fixedly connected to the first partition 2. The second partition 3 is used to divide the top of the first partition 2 into a vacuum chamber a and a vacuum chamber b. Both vacuum chamber a and vacuum chamber b are fixedly connected with reinforced inner lining plates to ensure the pressure resistance of vacuum chamber a and vacuum chamber b, so as to facilitate more stable operation of vacuum chamber a and vacuum chamber b. In vacuum operation, sealing plate 4 is installed on the front of installation cabinet 1 and is closed by a latch. This is existing technology and will not be described in detail here. Sealing plate 4 is used to seal vacuum chamber a and vacuum chamber b respectively. Vacuum pump group 5 is installed at the bottom of the inner cavity of installation cabinet 1. Connecting pipe group is set between vacuum pump group 5, vacuum chamber a and vacuum chamber b. Vacuum chamber a and vacuum chamber b form a negative pressure auxiliary source for each other through connecting pipe group, thereby reducing the energy consumption of vacuum pump group 5 when performing vacuum negative pressure operation inside vacuum chamber a or vacuum chamber b, and achieving the purpose of energy saving.

[0067] In particular, the vacuum pump assembly 5 includes a mounting cylinder 51, an end cap 52, a piston 53, and a hydraulic cylinder 54. The mounting cylinder 51 is fixedly installed at the bottom of the inner cavity of the mounting cabinet 1, the end cap 52 is fixedly installed at the end of the mounting cylinder 51, and the piston 53 is sleeved inside the mounting cylinder 51. The piston 53 is used to divide the interior of the mounting cylinder 51 into cylinder chamber c and cylinder chamber d. Cylinder chamber c is connected to vacuum chamber a through a connecting pipe assembly, and cylinder chamber d is connected to vacuum chamber b through a connecting pipe assembly. The hydraulic cylinder 54 is fixedly installed on one of the end caps 52. The output end of the hydraulic cylinder 54 is connected to the piston 53 for transmission, so that the hydraulic cylinder 54 can drive the piston 53 to move back and forth inside the mounting cylinder 51, thereby increasing or decreasing the space inside cylinder chamber c and cylinder chamber d. When the inner cavity of cylinder chamber c increases, the movement of the piston 53 can extract air from the inside of vacuum chamber a. Conversely, when the inner cavity of cylinder chamber d increases, the movement of the piston 53 can extract air from the inside of vacuum chamber b.

[0068] Furthermore, the connecting assembly includes a first tube 61, a second tube 63, a filter assembly 65, and a locking assembly 66. The first tube 61 is fixedly installed on the second partition 3. The first tube 61 is used to connect the inner cavities of vacuum chamber a and vacuum chamber b. A first solenoid valve 62 is fixedly installed on the first tube 61. Under the action of the first solenoid valve 62 and the first tube 61, vacuum chamber a and vacuum chamber b can be brought into balance, which can reduce the energy consumption when vacuum chamber a or vacuum chamber b is operated under negative pressure, thereby achieving the purpose of further energy saving. The second tube 63 is fixedly installed on the top of one side of the end cap 52. A second solenoid valve 64 is fixedly installed on the second tube body 63. One of the second tube bodies 63 is connected to the inner cavity of vacuum chamber a, and the other second tube body 63 is connected to the inner cavity of vacuum chamber b. Filter components 65 are respectively disposed inside vacuum chamber a and vacuum chamber b. Filter components 65 are used to filter the air inside the second tube body 63, thereby ensuring the cleanliness of the gas entering cylinder chamber c and cylinder chamber d. Locking components 66 are respectively disposed inside vacuum chamber a and vacuum chamber b. Locking components 66 are used to lock and limit the filter components 65, thereby ensuring the stability of the filter components 65 installation.

[0069] Furthermore, the connecting assembly also includes a third tube 67, a first pressure sensor 69, and a second pressure sensor 610. The third tube 67 is fixedly installed on the bottom of one side of the end cap 52. A second solenoid valve 64 is fixedly installed on the third tube 67. The third tube 67 is only used for the discharge of gas inside cylinder chambers c and d, and external gas does not enter the interior of cylinder chamber c or cylinder chamber d through the third tube 67. The first pressure sensor 69 is fixedly installed on one side of the end cap 52. The first pressure sensor 69 is used to monitor the pressure inside cylinder chambers c and d. The air pressure is detected by a second air pressure sensor 610, which is fixedly installed on the top of the mounting cabinet 1. The second air pressure sensor 610 is used to detect the air pressure inside vacuum chamber a and vacuum chamber b, respectively. Thus, the air pressure inside cylinder c, cylinder d, vacuum chamber a, and vacuum chamber b can be obtained in real time through two first air pressure sensors 69 and two second air pressure sensors 610. The first air pressure sensors 69 and the second air pressure sensors 610 use wireless communication technology for data transmission, which is existing technology and will not be described in detail here.

[0070] Example 2: Based on Example 1, the filter assembly 65 includes a mounting housing 651, a slot, an air filter element 652, air holes, a support block 653, a first limiting block 654, a second limiting block 655, a fixing rod 656, a positioning plate 657, a sealing gasket, and a positioning rod 658. The mounting housing 651 is slidably engaged with one side of the inner cavity of vacuum chamber a. That is, the mounting housings 651 inside vacuum chamber a and vacuum chamber b adopt the same installation method. The slot is opened at the bottom of the back of the mounting housing 651, and the top of the outer wall of the second tube 63 slides... The moving clip is inserted into the slot, and the air filter element 652 is sleeved inside the mounting housing 651. An air vent is opened on the top of one side of the mounting housing 651, located at the top of the air filter element 652. This allows air to flow through the air vent, the air filter element 652, and the second tube 63 within the mounting housing 651. A support block 653 is fixedly connected inside the mounting housing 651, positioned between the air filter element 652 and the second tube 63. A first limiting block 654 is slidably sleeved inside the mounting housing 651. Located at the top of the air filter element 652, both the top of the first limiting block 654 and the bearing block 653 have through holes. The second limiting block 655 is slidably sleeved inside the mounting housing 651, with its top fitting against the top of the inner cavity of the vacuum chamber a. A fixing rod 656 is fixedly connected between the first limiting block 654 and the second limiting block 655. The bearing block 653, the first limiting block 654, the second limiting block 655, and the fixing rod 656 ensure the stability of the air filter element 652 installed inside the mounting housing 651. (Positioning plate) Positioning plate 657 is fixedly installed inside vacuum chamber a. Positioning plate 657 is located on the back of mounting housing 651. Sealing gasket is fixedly connected to the bottom of the front of positioning plate 657. Sealing gasket is used to cover and seal the slot. Sealing gasket can ensure the sealing of the slot at the bottom of the back of mounting housing 651. Positioning rod 658 is fixedly connected to the back of mounting housing 651. Positioning hole is opened on the front of positioning plate 657. The outer wall of positioning rod 658 is slidably engaged with the inner cavity of positioning hole. Positioning rod 658 can improve the stability of the installation position of mounting housing 651.

[0071] Specifically, the locking assembly 66 includes a first connecting plate 661, a connecting rod 662, a positioning block 663, a second connecting plate 664, a fixing block 665, a limiting spring 667, and a locking plate 666. The first connecting plate 661 is slidably engaged with the inside of the vacuum chamber a. The front of the first connecting plate 661 is in contact with the sealing plate 4. When the sealing plate 4 is closed, the sealing plate 4 can lock and limit the mounting housing 651 through the first connecting plate 661, the connecting rod 662, and the positioning block 663, thereby ensuring the stability of the mounting housing 651. The connecting rod 664... One end of the connecting rod 62 is fixedly connected to the first connecting plate 661. A positioning block 663 is fixedly connected to the end of the connecting rod 662. The positioning block 663 is pressed against the front of the mounting housing 651. The second connecting plate 664 is slidably installed on the outside of the connecting rod 662. A fixing block 665 is fixedly connected to one side of the inner wall of the vacuum chamber a. The fixing block 665 is located between the second connecting plate 664 and the first connecting plate 661. A limiting spring 667 is slidably sleeved on the outside of the connecting rod 662. The limiting spring 667 is located between the second connecting plate 664 and the positioning block 663, limiting the movement of the connecting rod. Spring 667 provides an elastic compressive force to positioning block 663, ensuring that positioning block 663 still limits the mounting housing 651 when sealing plate 4 is opened. One end of locking plate 666 is fixedly connected to first connecting plate 661. Locking holes are provided on the front of fixing block 665 and the front of second connecting plate 664. The outer wall of locking plate 666 slides and engages with the inner cavity of the locking hole. Under the action of limiting spring 667, first connecting plate 661 and second connecting plate 664 can be stably clamped on fixing block 665, and the locking plate 666... This ensures the stability of the first connecting plate 661 and the second connecting plate 664, which are securely clamped onto the fixing block 665. When maintenance of the air filter 652 is required, first open the sealing plate 4, pull the first connecting plate 661 to separate the locking plate 666 from the second connecting plate 664 and the fixing block 665, then remove the first connecting plate 661 and the second connecting plate 664, and the mounting housing 651 can be slid out. Then, remove the first limiting block 654, the second limiting block 655 and the fixing rod 656, and the air filter 652 can be directly pulled out for maintenance.

[0072] Another objective of this invention is to provide an energy-saving vacuum cabinet and its method of use, comprising the following specific steps:

[0073] Step 1: When it is necessary to put the vacuum chamber a under negative pressure, first close the sealing plate 4 on the vacuum chamber a, so that the first solenoid valve 62 and the two third solenoid valves 68 are closed, and the two second solenoid valves 64 are open. The hydraulic cylinder 54 drives the piston 53 to move, the inner cavity of the cylinder chamber c increases, and the cylinder chamber c draws gas from the inside of the vacuum chamber a through the second tube 63, thus realizing the vacuum evacuation step of the vacuum chamber a.

[0074] Step 2: Then close the second solenoid valve 64 on the second tube 63 connecting vacuum chamber a, so that the hydraulic cylinder 54 drives the piston 53 to reset and move until the air pressure inside the cylinder chamber c is balanced with the external air pressure, thereby reducing the driving force of the piston 53 to reset and move, and achieving the purpose of reducing energy consumption. Then open the third solenoid valve 68 on the third tube 67 connecting cylinder chamber c, and the piston 53 continues to reset and move. The gas inside the cylinder chamber c is discharged through the third tube 67. Then close the third solenoid valve 68 and open the second solenoid valve 64 to perform the vacuum evacuation step of vacuum chamber a again, extracting the gas inside vacuum chamber a until the air pressure inside vacuum chamber a reaches the set value. Then close the two second solenoid valves 64, thereby completing the vacuum negative pressure operation inside vacuum chamber a.

[0075] Step 3: When it is necessary to put the vacuum chamber b into a negative pressure state, first close the sealing plate 4 on the vacuum chamber b, then open the first solenoid valve 62 to balance the gas pressure inside the vacuum chamber a and the vacuum chamber b, then close the first solenoid valve 62, and then the hydraulic cylinder 54 drives the piston 53 to move, the inner cavity of the cylinder chamber d increases, and the cylinder chamber d draws gas from the inside of the vacuum chamber b through the second tube 63. The gas in the vacuum chamber b is drawn to achieve the vacuum evacuation step of the vacuum chamber a. At this time, the vacuum chamber a acts as a negative pressure auxiliary source for the piston 53 to move until the gas pressure inside the vacuum chamber a is balanced with the external gas pressure, then the sealing plate 4 on the vacuum chamber a can be opened.

[0076] Step 4: Then close the second solenoid valve 64 on the second tube 63 connecting vacuum chamber a, causing the hydraulic cylinder 54 to drive the piston 53 to reset until the air pressure inside the cylinder d is balanced with the external air pressure, thereby reducing the driving force of the piston 53 to reset and achieve the purpose of reducing energy consumption. Then open the third solenoid valve 68 on the third tube 67 connecting cylinder d, and the piston 53 continues to reset and move. The gas inside cylinder d is discharged through the third tube 67. Then close the third solenoid valve 68 and open the second solenoid valve 64 to perform the vacuum evacuation step of vacuum chamber d again, extracting the gas inside vacuum chamber d until the air pressure inside vacuum chamber d reaches the set value. Then close both second solenoid valves 64, thereby completing the vacuum negative pressure operation inside vacuum chamber d.

[0077] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving vacuum cabinet and its method of use, characterized in that, include: Install the cabinet (1); The first partition (2) is fixedly installed inside the mounting cabinet (1); The second partition (3) is fixedly connected to the interior of the mounting cabinet (1). The bottom of the second partition (3) is fixedly connected to the first partition (2). The second partition (3) is used to divide the top of the first partition (2) into vacuum chamber a and vacuum chamber b. A sealing plate (4) is installed on the front of the mounting cabinet (1). The sealing plate (4) is used to seal the vacuum chamber a and the vacuum chamber b respectively. Vacuum pump assembly (5), wherein the vacuum pump assembly (5) is installed at the bottom of the inner cavity of the mounting cabinet (1); A connecting pipe assembly is provided between the vacuum pump assembly (5), vacuum chamber a, and vacuum chamber b. Vacuum chamber a and vacuum chamber b form a negative pressure auxiliary source for each other through the connecting pipe assembly.

2. The energy-saving vacuum cabinet and its method of use according to claim 1, characterized in that, The vacuum pump assembly (5) includes: The mounting cylinder (51) is fixedly installed at the bottom of the inner cavity of the mounting cabinet (1); End cap (52), the end cap (52) is fixedly installed at the end of the mounting cylinder (51); Piston (53), the piston (53) is sleeved inside the mounting cylinder (51), the piston (53) is used to divide the inside of the mounting cylinder (51) into cylinder cavity c and cylinder cavity d, the cylinder cavity c is connected to the vacuum chamber a through a connecting pipe group, and the cylinder cavity d is connected to the vacuum chamber b through a connecting pipe group; A hydraulic cylinder (54) is fixedly installed on one of the end caps (52), and the output end of the hydraulic cylinder (54) is connected to the piston (53) for transmission.

3. The energy-saving vacuum cabinet and its method of use according to claim 2, characterized in that, The connectivity component includes: The first tube (61) is fixedly installed on the second partition (3). The first tube (61) is used to connect the inner cavities of vacuum chamber a and vacuum chamber b to each other. The first solenoid valve (62) is fixedly installed on the first tube (61). The second tube (63) is fixedly installed on the top of one side of the end cap (52). A second solenoid valve (64) is fixedly installed on the second tube (63). One of the second tubes (63) is connected to the inner cavity of the vacuum chamber a, and the other second tube (63) is connected to the inner cavity of the vacuum chamber b. The filter assembly (65) is respectively disposed inside the vacuum chamber a and the vacuum chamber b, and the filter assembly (65) is used to filter the air inside the second tube (63); Locking component (66) is disposed inside vacuum chamber a and vacuum chamber b respectively, and the locking component (66) is used to lock and limit the filter component (65).

4. The energy-saving vacuum cabinet and its method of use according to claim 3, characterized in that, The connectivity component also includes: The third tube (67) is fixedly installed on the bottom of one side of the end cap (52), and the second solenoid valve (64) is fixedly installed on the third tube (67). The first air pressure sensor (69) is fixedly installed on one side of the end cover (52). The first air pressure sensor (69) is used to detect the air pressure inside the cylinder cavity c and the cylinder cavity d respectively. The second pressure sensor (610) is fixedly installed on the top of the mounting cabinet (1). The second pressure sensor (610) is used to detect the air pressure inside the vacuum chamber a and the vacuum chamber b, respectively.

5. The energy-saving vacuum cabinet and its method of use according to claim 3, characterized in that, The filter assembly (65) includes: Mounting housing (651), which is slidably engaged with one side of the inner cavity of vacuum chamber a; A slot is formed at the bottom of the back of the mounting housing (651), and the top of the outer wall of the second tube (63) is slidably engaged with the inside of the slot; An air filter element (652) is fitted inside the mounting housing (651); Air vents are provided on the top of one side of the mounting housing (651) and on the top of the air filter element (652).

6. The energy-saving vacuum cabinet and its method of use according to claim 5, characterized in that, The filter assembly (65) further includes: The support block (653) is fixedly connected to the inside of the mounting housing (651) and is located between the air filter (652) and the second tube (63). The first limiting block (654) is slidably sleeved inside the mounting housing (651). The first limiting block (654) is located at the top of the air filter (652). Both the top of the first limiting block (654) and the bearing block (653) are provided with through holes. The second limiting block (655) is slidably sleeved inside the mounting housing (651), and the top of the second limiting block (655) is in contact with the top of the inner cavity of the vacuum chamber a. A fixing rod (656) is fixedly connected between the first limiting block (654) and the second limiting block (655).

7. The energy-saving vacuum cabinet and its method of use according to claim 6, characterized in that, The filter assembly (65) further includes: Positioning plate (657), the positioning plate (657) is fixedly installed inside the vacuum chamber a, the positioning plate (657) is located on the back of the mounting housing (651); A sealing gasket is fixedly connected to the bottom of the front side of the positioning plate (657), and the sealing gasket is used to cover and seal the slot. The positioning rod (658) is fixedly connected to the back of the mounting housing (651). The positioning plate (657) has a positioning hole on its front side. The outer wall of the positioning rod (658) is slidably engaged with the inner cavity of the positioning hole.

8. The energy-saving vacuum cabinet and its method of use according to claim 7, characterized in that, The locking component (66) includes: The first connecting plate (661) is slidably snapped into the inside of the vacuum chamber a, and the front side of the first connecting plate (661) is in contact with the sealing plate (4); A connecting rod (662), one end of which is fixedly connected to a first connecting plate (661); Positioning block (663) is fixedly connected to the end of connecting rod (662), and positioning block (663) is pressed against the front of mounting housing (651).

9. The energy-saving vacuum cabinet and its method of use according to claim 8, characterized in that, The locking component (66) further includes: The second connecting plate (664) is slidably mounted on the outside of the connecting rod (662); A fixing block (665) is fixedly connected to one side of the inner wall of the vacuum chamber a, and the fixing block (665) is located between the second connecting plate (664) and the first connecting plate (661); A limiting spring (667) is slidably sleeved on the outside of the connecting rod (662), and the limiting spring (667) is located between the second connecting plate (664) and the positioning block (663); A locking plate (666) is fixedly connected at one end to a first connecting plate (661). Locking holes are provided on the front of the fixing block (665) and the front of the second connecting plate (664). The outer wall of the locking plate (666) is slidably engaged with the inner cavity of the locking hole.

10. An energy-saving vacuum cabinet and its method of use, comprising the energy-saving vacuum cabinet and its method of use according to any one of claims 1-9, characterized in that, The specific steps include the following: Step 1: When it is necessary to put the vacuum chamber a in a negative pressure state, first close the sealing plate (4) on the vacuum chamber a, so that the first solenoid valve (62) and the two third solenoid valves (68) are closed, and the two second solenoid valves (64) are open. The hydraulic cylinder (54) drives the piston (53) to move, the inner cavity of the cylinder cavity c increases, and the cylinder cavity c draws gas from the inside of the vacuum chamber a through the second tube (63), thus realizing the vacuum evacuation step of the vacuum chamber a. Step 2: Then close the second solenoid valve (64) on the second tube (63) connecting vacuum chamber a, so that the hydraulic cylinder (54) drives the piston (53) to reset and move until the gas pressure inside the cylinder chamber c is balanced with the external gas pressure. Then open the third solenoid valve (68) on the third tube (67) connecting cylinder chamber c, and the piston (53) continues to reset and move. The gas inside the cylinder chamber c is discharged through the third tube (67). Then close the third solenoid valve (68), open the second solenoid valve (64), and perform the vacuum pumping step of vacuum chamber a again to extract the gas inside vacuum chamber a until the gas pressure inside vacuum chamber a reaches the set value. Then close the two second solenoid valves (64) to complete the vacuum negative pressure operation inside vacuum chamber a. Step 3: When it is necessary to put the vacuum chamber b in a negative pressure state, first close the sealing plate (4) on the vacuum chamber b, and then open the first solenoid valve (62) to balance the gas pressure inside the vacuum chamber a and the vacuum chamber b. Then close the first solenoid valve (62), and then the hydraulic cylinder (54) drives the piston (53) to move. The inner cavity of the cylinder chamber d increases, so that the cylinder chamber d extracts the gas inside the vacuum chamber b through the second tube (63). Extracting the gas inside the vacuum chamber b realizes the vacuum evacuation step of the vacuum chamber a. At this time, the vacuum chamber a acts as a negative pressure auxiliary source for the piston (53) to move until the gas pressure inside the vacuum chamber a is balanced with the external gas pressure. Then the sealing plate (4) on the vacuum chamber a can be opened. Step 4: Then close the second solenoid valve (64) on the second tube (63) connecting the vacuum chamber a, so that the hydraulic cylinder (54) drives the piston (53) to reset and move until the air pressure inside the cylinder chamber d is balanced with the external air pressure. Then open the third solenoid valve (68) on the third tube (67) connecting the cylinder chamber d, and the piston (53) continues to reset and move. The gas inside the cylinder chamber d is discharged through the third tube (67). Then close the third solenoid valve (68), open the second solenoid valve (64), and perform the vacuum pumping step of the vacuum chamber d again to extract the gas inside the vacuum chamber d until the air pressure inside the vacuum chamber d reaches the set value. Then close the two second solenoid valves (64) to complete the vacuum negative pressure operation inside the vacuum chamber d.

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