Vacuum energy-saving generator

Abstract

The utility model discloses a vacuum energy-saving generator, and relates to the technical field of vacuum pumps. The device is installed at the air outlet end of the vacuum pump and comprises a one-way valve, a sleeve and a vacuum generator, the one-way valve is located in the sleeve and divides the sleeve into an air inlet end and an air outlet end, the air inlet end of the sleeve is communicated with the air outlet end of the vacuum pump, and the air inlet end of the vacuum generator is located outside the sleeve and used for introducing high-speed flowing air. The air outlet end of the vacuum generator penetrates into the cavity of the air inlet end of the sleeve, the one-way valve is provided with a first exhaust port, the air outlet direction of the air outlet end of the vacuum generator is aligned with the first exhaust port of the one-way valve, and high-speed flowing air is ejected out through the air outlet end of the vacuum generator and then is exhausted through the first exhaust port of the one-way valve. The exhaust pressure of the vacuum pump is reduced, and the energy-saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum pump technical field, concretely relates to a vacuum energy-saving generator. BACKGROUND

[0002] With the development of economy, the progress of society, in photovoltaic semiconductor, chemical industry, medicine and other industries, the application range of vacuum pump is more and more wide, energy saving and environmental protection has become the important topic of today's society, under these backgrounds, the importance of energy saving and environmental protection is more and more prominent.Energy saving and environmental protection not only can alleviate environmental pressure, protect ecological system, but also is the key way of sustainable development.Firstly, the normal running time of vacuum pump is only below 50% in the use process, and the remaining time is in idle state without load operation, and the electric energy consumption is large;Secondly, corresponding to the last stage of multistage vacuum pump, because the air density is maximum, so the pressure is maximum, and when the last stage pressure is large, the vacuum pump needs to spend large power to send gas to the back, and the energy consumption is high, and the operation cost is increased.

[0003] Therefore, it is necessary to design a vacuum energy-saving generator, which reduces the pressure of the vacuum pump idling and reduces the power loss without affecting the process. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of vacuum energy-saving generators, pass through one-way valve and vacuum generator structure, utilize "Venturi" principle, pass into compressed gas of high-speed flow to reduce vacuum pump tail discharge pressure, to achieve energy-saving purpose.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model discloses a kind of vacuum energy-saving generators, install in the air outlet end of vacuum pump, including one-way valve, sleeve and vacuum generator, the one-way valve is located in sleeve, and sleeve is divided into air inlet end and air outlet end, the air inlet end of sleeve is communicated with the air outlet end of vacuum pump, the air inlet end of vacuum generator is located outside sleeve, for accessing high-speed flow gas, the air outlet end of vacuum generator is penetrated into the cavity of sleeve air inlet end, the first exhaust port has on the one-way valve, the air outlet direction of the air outlet end of vacuum generator is aligned with the first exhaust port of one-way valve, and high-speed flow gas is sprayed out after the air outlet end of vacuum generator and is discharged through the first exhaust port of one-way valve.

[0007] Further, the one-way valve comprises a valve seat, a baffle, a valve and a spring, the baffle is fixedly connected with the valve seat through a screw, a through hole is formed in the baffle, a second exhaust port is formed in the valve seat, the spring is sleeved on the valve, one end of the valve is arranged in the through hole of the baffle, the other end of the valve abuts against the second exhaust port, the spring is in a compressed state, the valve closes the second exhaust port through the elastic force of the spring, when the air pressure of the air inlet end of the sleeve is greater than the elastic force of the spring, the valve is opened.

[0008] Further, the valve comprises a welded moving rod and a valve plate, in the vertical direction of the moving direction of the valve, the cross section of the valve plate is greater than the cross section of the moving rod, the spring is sleeved on the moving rod, one end of the spring abuts against the valve plate, and the other end of the spring abuts against the baffle, so that the spring is in a compressed state, and the valve plate is further provided with an O-shaped gasket.

[0009] Further, the valve has two or more than two, and is uniformly distributed between the baffle and the valve seat, and each valve corresponds to one second exhaust port.

[0010] Further, the first exhaust port is arranged on the valve seat, the first exhaust port is provided with an exhaust sleeve pipe extending towards the air outlet end, and the air outlet end of the exhaust sleeve pipe expands and sprays the gas.

[0011] Further, the high-speed flowing gas is compressed air CDA or nitrogen N2.

[0012] Further, the air inlet end and the air outlet end of the sleeve are both provided with flanges, the air inlet end of the sleeve is communicated with the air outlet end of the vacuum pump through the flanges, and the air outlet end of the sleeve is communicated with a subsequent gas pipeline through the flanges.

[0013] As the technical scheme is adopted, the vacuum energy-saving generator has the beneficial effects that:

[0014] The vacuum energy-saving generator combines a vacuum generator and a one-way valve, the design of the one-way valve ensures one-way discharge of the gas flow when the air pressure in the sleeve is large, and effectively prevents the backflow of the gas; the vacuum generator is communicated with high-speed flowing gas, a negative pressure is generated in the sleeve by utilizing the Venturi principle, the pressure of the vacuum pump at the air outlet end is reduced, and therefore the energy consumption is reduced. The high-speed flowing gas such as compressed air CDA and nitrogen N2 is widely available, and the use cost is low.

[0015] The vacuum energy-saving generator has the beneficial effects that:

[0016] The utility model relates to a vacuum energy-saving generator, sleeve both ends pass through flange connection, it is convenient to quick dismounting and system integration of device, and maintenance and replacement are more convenient, one-way valve and vacuum generator adopt split type design, can be replaced independently, reduce maintenance cost.

[0017] The utility model relates to a vacuum energy-saving generator, is applicable to industrial production, medical equipment, vacuum packaging, semiconductor manufacturing and a plurality of fields, especially in the scene with remarkable advantage to the higher vacuum performance and energy-saving requirement. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will to the drawing needed in the embodiment used briefly introduce, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skill in the art person, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings, the proportional relationship of each component in the drawings of this specification does not represent the proportional relationship of actual material selection design, it is merely the schematic view of structure or position, wherein:

[0019] Figure 1 It is the external structure diagram of the utility model;

[0020] Figure 2 It is the sectional view of the utility model;

[0021] Figure 3 It is the sectional view of another face of the utility model;

[0022] Figure 4 It is the structure diagram of valve and single board in the utility model.

[0023] Explanation of reference numerals: 1-one-way valve, 11-valve seat, 111-second exhaust port, 12-baffle, 13-valve, 131-moving rod, 132-valve plate, 133-O ring, 14-spring, 2-sleeve, 3-vacuum generator, 4-first exhaust port, 41-exhaust sleeve, 5-flange. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawings and embodiment, and the utility model is further detailedly explained.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model, that is, the described embodiments are only a part of the embodiments of the utility model, and are not all the embodiments.The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] All features disclosed in this specification, or all steps of any method or process disclosed, can be combined in any combination, except combinations where at least some of the features and / or steps are mutually exclusive.

[0027] The utility model will be explained in detail below in combination with the drawings, and the embodiment only illustrates the specific implementation of the safety management process of one project.

[0028] Embodiment one

[0029] The utility model discloses a vacuum energy-saving generator, as shown in Figure 1 、 Figure 2 、 Figure 3 , install in the air outlet end of vacuum pump, including check valve 1, sleeve 2 and vacuum generator 3, check valve 1 is located in sleeve 2, and sleeve 2 is divided into air inlet end and air outlet end, the air inlet end of sleeve 2 is communicated with the air outlet end of vacuum pump, the air inlet end of vacuum generator 3 is located outside sleeve 2, for accessing high-speed flowing gas, the air outlet end of vacuum generator 3 is penetrated into the cavity of sleeve 2 air inlet end, check valve 1 has first exhaust port 4, the air outlet direction of the air outlet end of vacuum generator 3 is aligned with first exhaust port 4 of check valve 1, and high-speed flowing gas is discharged through the first exhaust port 4 of check valve 1 after being sprayed out through the air outlet end of vacuum generator 3.

[0030] As shown in Figure 3 、 Figure 4 , check valve 1 includes valve seat 11, baffle 12, valve 13 and spring 14, baffle 12 is fixedly connected with valve seat 11 by screw, and the through hole is formed in baffle 12, the second exhaust port 111 is formed in valve seat 11, spring 14 is sleeved on valve 13, one end of valve 13 is arranged in the through hole of baffle 12, the other end of valve 13 is abutted with the second exhaust port 111, and spring 14 is in compression state, and the second exhaust port 111 is closed by the rebound force of spring 14, when the air pressure of sleeve 2 air inlet end is greater than the rebound force of spring 14, valve 13 is opened.

[0031] As shown in Figure 3 、 Figure 4As shown, the valve 13 includes a welded moving rod 131 and a valve plate 132, in the vertical direction of the moving direction of the valve 13, the cross section of the valve plate 132 is larger than the cross section of the moving rod 131, the spring 14 is sleeved on the moving rod 131, one end of the spring 14 abuts against the valve plate 132, and the other end of the spring 14 abuts against the baffle 12, so that the spring 14 is in a compressed state, and the valve plate 132 is further provided with an O-shaped gasket 133.

[0032] The valve 13 is 2 or more and is uniformly distributed between the baffle 12 and the valve seat 11, and each valve 13 corresponds to one second exhaust port 111.

[0033] As Figure 3 As shown, the first exhaust port 4 is arranged on the valve seat 11, the first exhaust port 4 is provided with an exhaust sleeve 41 extending to the gas outlet end, and the gas outlet end of the exhaust sleeve 41 expands and sprays the gas.

[0034] In the utility model, the first exhaust port 4 is provided with an exhaust sleeve 41 extending to the gas outlet end, and the design has the following advantages:

[0035] Reduce noise: the expansion and spraying design of the exhaust sleeve 41 can effectively reduce the noise when the gas is discharged at high speed.

[0036] Enhance exhaust efficiency: through the diffusion effect of the nozzle, the gas discharge is more smooth, the exhaust resistance is reduced, and the backflow of the gas is prevented.

[0037] The high-speed flowing gas is compressed air CDA or nitrogen N2.

[0038] In the utility model, selecting compressed air CDA or nitrogen N2 as the high-speed flowing gas has the following advantages:

[0039] Cleanliness: both kinds of gases are common industrial gases, and have high cleanliness, and will not pollute the vacuum pump or pipeline.

[0040] Universality: compressed air CDA is common in various factories, and nitrogen N2 is suitable for special scenes with high gas purity requirements, such as semiconductor processing or pharmaceutical manufacturing.

[0041] High efficiency: the kinetic energy of the high-speed flowing gas is converted into suction, which can quickly form a vacuum and significantly improve the working efficiency.

[0042] The flanges 5 are arranged on the gas inlet end and the gas outlet end of the sleeve 2, the gas inlet end of the sleeve 2 is communicated with the gas outlet end of the vacuum pump through the flange 5, and the gas outlet end of the sleeve 2 is communicated with the subsequent gas pipeline through the flange 5.

[0043] The flanges 5 arranged at both ends of the sleeve 2 provide a flexible connection mode:

[0044] The flange 5 is connected to facilitate quick installation and dismounting of the equipment, and is suitable for various vacuum pumps and gas pipeline configurations.

[0045] The utility model discloses a vacuum generator 3 is installed at the air outlet end of the vacuum pump, utilizes the high -speed flow gas, produces the negative pressure, reduces the air exhaust end pressure of vacuum pump, avoids the backflow of gas through the action of check valve 1, protects the stable operation of equipment, and the whole device structure is compact, and easy to install, maintain and replace.

[0046] The utility model discloses a check valve 1, sleeve 2 and vacuum generator 3, sleeve 2 is the shell of whole device, plays the role of airflow guide, sealing and installation:

[0047] Partition function: sleeve 2 is installed through check valve 1, and the internal space is divided into the air inlet end and the air outlet end.

[0048] Connection effect: the two ends of sleeve 2 are connected with the air outlet end of vacuum pump and subsequent gas pipeline through flange 5 respectively, to facilitate the installation and dismounting of the equipment.

[0049] The function and advantage of the check valve of the utility model

[0050] The main function of check valve 1 is:

[0051] Airflow guide: the gas in sleeve 2 is guided to the air outlet end, prevents the backflow of gas to the vacuum pump, and ensures the stability of the vacuum pump system.

[0052] Automatic opening and closing: through the rebound force of spring 14, valve 13 can be automatically opened or closed according to the change of air inlet pressure, realizes the functions of efficient sealing and anti-backflow.

[0053] The structural characteristics of check valve:

[0054] Valve seat 11 and baffle 12: the fixed connection of valve seat 11 and baffle 12 provides a stable basis for valve 13, and forms an airflow channel through the second exhaust port 111 of valve seat 11.

[0055] Valve 13 is composed of moving rod 131 and valve plate 132, the design of valve plate 132 enhances the sealing performance, and O-ring 133 further improves the sealing effect.

[0056] The function of spring 14: spring 14 is in compression state, valve 13 is in closed state under the action of spring 14, to prevent backflow of gas; when the gas pressure of sleeve 2 air inlet end exceeds the rebound force of spring 14, valve 13 is automatically opened, and the gas is discharged through the second exhaust port 111, the utility model realizes dynamic adjustment by controlling the opening and closing of valve 13 through the rebound force of spring 14.

[0057] The valve 13 of the embodiment is 4, and is uniformly distributed, each valve 13 corresponds to a second exhaust port 111, which can effectively improve the exhaust flow and reduce the exhaust resistance; the design of multiple valves 13 has obvious shunt effect when high-speed exhaust, which helps to prolong the service life of a single valve 13.

[0058] For a multi-stage vacuum pump system, the last stage of the multi-stage vacuum pump system has the maximum air density and the maximum pressure, and when the pressure of the last stage of the vacuum pump is positive, the vacuum pump needs to consume more power to exhaust the gas, and the compression ratio of the last stage of the multi-stage vacuum pump is the main reason affecting the power loss, and the compression ratio of the vacuum pressure of the multi-stage vacuum pump has a great influence on the overall power consumption.

[0059] During use, the normal running time of the vacuum pump is only below 50%, and the remaining time is in the idle state without load operation. Therefore, under the condition of not affecting the process, reducing the pressure of the vacuum pump during idling can reduce the power loss to achieve the effect of energy saving.

[0060] The working principle of the utility model:

[0061] When the vacuum pump is normally pumping, the gas pressure at the inlet end of the sleeve 2 is greater than the spring force of the spring 14, so that the one-way valve 1 is opened, and the gas is discharged through the second exhaust port 111.

[0062] When the vacuum pump is in the idle state without load operation, the spring 14 will close the valve 13 again when the air pressure decreases, and the high-speed flowing gas (such as compressed air CDA or nitrogen N2) is continuously introduced from the inlet end of the vacuum generator 3, is high-speed injected through the nozzle of the vacuum generator 3, enters the first exhaust port 4 after the inlet end cavity of the sleeve 2. The utility model utilizes the "Venturi" principle, and the high-speed flowing gas takes away the air in the inlet end cavity of the sleeve 2 in the injection process, so that negative pressure is formed at the inlet end of the sleeve 2. The sleeve 2 is connected with the vacuum pump, so that the vacuum pump generates negative pressure, thereby reducing the exhaust pressure of the vacuum pump, and further reducing the energy consumption of the vacuum pump.

[0063] After the utility model is installed, no other problems will be caused at the exhaust port of the vacuum pump, even if no nitrogen is introduced, the internal spring 14 fails, the internal sealing performance is reduced, etc. Only the energy saving effect is reduced, the original performance of the vacuum pump is not affected, at this time, only a new vacuum energy generator needs to be replaced.

[0064] The device is suitable for the following scenes:

[0065] Industrial production: used for occasions requiring high vacuum such as vacuum coating and semiconductor manufacturing.

[0066] Medical equipment: applied to operating room negative pressure systems or medical vacuum devices.

[0067] Pneumatic device assistance: for vacuum suction, automated clamping, etc.

[0068] The above merely describes preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can think of changes or substitutions within the technical range disclosed by the present application without creative labor, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A vacuum energy-saving generator, installed at the outlet end of a vacuum pump, characterized in that: The device includes a one-way valve (1), a sleeve (2), and a vacuum generator (3). The one-way valve (1) is located inside the sleeve (2), dividing the sleeve (2) into an inlet end and an outlet end. The inlet end of the sleeve (2) is connected to the outlet end of the vacuum pump. The inlet end of the vacuum generator (3) is located outside the sleeve (2) and is used to access high-speed flowing gas. The outlet end of the vacuum generator (3) penetrates into the cavity of the inlet end of the sleeve (2). The one-way valve (1) has a first exhaust port (4). The outlet direction of the outlet end of the vacuum generator (3) is aligned with the first exhaust port (4) of the one-way valve (1). The high-speed flowing gas is ejected from the outlet end of the vacuum generator (3) and discharged through the first exhaust port (4) of the one-way valve (1).

2. The vacuum energy-saving generator according to claim 1, characterized in that: The one-way valve (1) includes a valve seat (11), a baffle (12), a valve (13), and a spring (14). The baffle (12) is fixedly connected to the valve seat (11) by screws. The baffle (12) has a through hole. The valve seat (11) has a second exhaust port (111). The spring (14) is sleeved on the valve (13). One end of the valve (13) is placed in the through hole of the baffle (12). The other end of the valve (13) abuts against the second exhaust port (111). The spring (14) is in a compressed state. The valve (13) closes the second exhaust port (111) by the rebound force of the spring (14). When the air pressure at the air inlet end of the sleeve (2) is greater than the rebound force of the spring (14), the valve (13) opens.

3. A vacuum energy-saving generator according to claim 2, characterized in that: The valve (13) includes a welded moving rod (131) and a valve plate (132). In the direction perpendicular to the moving direction of the valve (13), the cross section of the valve plate (132) is larger than the cross section of the moving rod (131). The spring (14) is sleeved on the moving rod (131), with one end abutting against the valve plate (132) and the other end abutting against the baffle (12), so that the spring (14) is in a compressed state. An O-ring (133) is also provided on the valve plate (132).

4. A vacuum energy-saving generator according to claim 2, characterized in that: There are two or more valves (13), which are evenly distributed between the baffle (12) and the valve seat (11), and each valve (13) corresponds to one second exhaust port (111).

5. A vacuum energy-saving generator according to claim 2, characterized in that: The first exhaust port (4) is provided on the valve seat (11). The first exhaust port (4) is provided with an exhaust sleeve (41) extending towards the exhaust end, and the exhaust sleeve (41) expands and sprays out the gas.

6. A vacuum energy-saving generator according to claim 1, characterized in that: The high-speed flowing gas is compressed air (CDA) or nitrogen (N2).

7. A vacuum energy-saving generator according to claim 1, characterized in that: The sleeve (2) is equipped with flanges (5) at both the inlet and outlet ends. The inlet end of the sleeve (2) is connected to the outlet end of the vacuum pump through the flange (5), and the outlet end of the sleeve (2) is connected to the subsequent gas pipeline through the flange (5).

Images