阅读说明：本技术 箱式静音无油空压系统 (Box type silent oilless air compression system ) 是由 陈志敏 贾森 周楠 刘学 黄图江 胡克 于 2019-09-17 设计创作，主要内容包括：本发明提供一种箱式静音无油空压系统,其包括依次连接的：空气压缩机、离心式风冷除水器、电子除水装置、缓冲储气罐、减压阀以及油水分离器,所述缓冲储气罐底部设有冷凝水排放口。通过设置缓冲储气罐,用于将冷凝水收集并在空压系统不停机的情况下自动排放,提高空压系统运行稳定性。而且将电子除水装置设置在缓冲储气罐之前,能够避免电子除水装置温度过低产生结冰堵塞现象。(The invention provides a box type mute oil-free air compression system, which comprises the following components in sequential connection: the air-cooled water separator comprises an air compressor, a centrifugal air-cooled dehydrator, an electronic dehydrating device, a buffering air storage tank, a pressure reducing valve and an oil-water separator, wherein a condensed water discharge port is formed in the bottom of the buffering air storage tank. Through setting up buffering gas holder for collect the comdenstion water and discharge automatically under the circumstances that the air compressor system does not shut down, improve air compressor system operating stability. And the electronic dewatering device is arranged in front of the buffering air storage tank, so that the phenomenon of icing and blocking caused by over-low temperature of the electronic dewatering device can be avoided.)

1. The utility model provides a box silence does not have oily air compression system which characterized in that includes:

an air compressor;

the centrifugal air-cooled dehydrator is connected with the outlet end of the air compressor;

the electronic water removing device is connected to the downstream of the centrifugal air-cooled dehydrator;

the buffering gas storage tank is connected to the downstream of the electronic dewatering device, and a condensed water discharge port is formed in the bottom of the buffering gas storage tank;

the pressure reducing valve is connected with the downstream of the buffer air storage tank;

and the oil-water separator is connected with the downstream of the pressure reducing valve.

2. The box-type silent oil-free air compression system according to claim 1, characterized in that: the condensed water discharge port is connected with an adjustable safety valve.

3. The box-type silent oil-free air compression system according to claim 1, characterized in that: the air compressor is arranged in the box body, a compressor head of the air compressor is connected with the box body through at least four springs, one end of each spring is connected with the side edge of the lower end of the compressor head, and the other end of each spring is connected to the box body in an inclined upward mode.

4. The box-type silent oil-free air compression system according to claim 3, characterized in that: a compressor support frame is fixed on a base of the box body, and the other end of the spring is fixed on the compressor support frame through a screw, a nut and a spring shaft sleeve.

5. The box-type silent oil-free air compression system according to claim 3, characterized in that: egg nest type sound absorption cotton is adhered inside the box body.

6. The box-type silent oil-free air compression system according to claim 2, wherein: the adjustable safety valve is provided with an automatic water outlet, and a condensed water receiving bottle is connected below the automatic water outlet.

7. The box-type silent oil-free air compression system according to claim 6, wherein: a groove is formed in the sheet metal shell of the system through depression, and the condensed water collecting bottle is placed in the groove.

8. The box-type silent oil-free air compression system according to claim 7, wherein: the transparent acrylic protective plate fixed by magnetic attraction is arranged at the position flush with the sheet metal shell, and the condensed water receiving bottle is made of semitransparent or transparent materials.

9. The box-type silent oil-free air compression system according to claim 6, wherein: a silencer is also arranged at the automatic water outlet of the adjustable safety valve.

Technical Field

The invention relates to an air compression system, which can be applied to the fields of medical treatment, health, food, scientific experiments and the like, can be particularly used for matching atomic absorption, spectrum, mass spectrum and the like, and relates to all analysis industries, including laboratories of quality inspection, commercial inspection, environmental protection, disease control, agricultural inspection, universities, scientific research institutions, enterprises and the like.

Background

In the market at present, air compressor machine products are numerous, and the vast majority is simply in order to improve the pressure of compressed air, but to the aridity of gas, there is not relevant requirement to the cleanliness factor.

Moreover, products on the market are very noisy, and are a serious noise pollution for laboratory personnel when used in a laboratory. The air compressor developed by the invention is mainly used in cooperation with laboratory instruments, and is mainly characterized by being free of oil, silent, dry and suitable in flow and pressure.

Disclosure of Invention

The invention aims to: the box type silent oilless air compression system is provided, and aims to realize oilless, silent and dry operation and have proper flow and pressure.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a box silence does not have oily air compression system which characterized in that includes:

an air compressor;

the centrifugal air-cooled dehydrator is connected with the outlet end of the air compressor;

the electronic water removing device is connected to the downstream of the centrifugal air-cooled dehydrator;

the buffering gas storage tank is connected to the downstream of the electronic dewatering device, and a condensed water discharge port is formed in the bottom of the buffering gas storage tank;

the pressure reducing valve is connected with the downstream of the buffer air storage tank;

and the oil-water separator is connected with the downstream of the pressure reducing valve.

The box silence oil-free air compression system, wherein: the condensed water discharge port is connected with an adjustable safety valve.

The box silence oil-free air compression system, wherein: the air compressor is arranged in the box body, a compressor head of the air compressor is connected with the box body through at least four springs, one end of each spring is connected with the side edge of the lower end of the compressor head, and the other end of each spring is connected to the box body in an inclined upward mode.

The box silence oil-free air compression system, wherein: a compressor support frame is fixed on a base of the box body, and the other end of the spring is fixed on the compressor support frame through a screw, a nut and a spring shaft sleeve.

The box silence oil-free air compression system, wherein: egg nest type sound absorption cotton is adhered inside the box body.

The box silence oil-free air compression system, wherein: the adjustable safety valve is provided with an automatic water outlet, and a condensed water receiving bottle is connected below the automatic water outlet.

The box silence oil-free air compression system, wherein: a groove is formed in the sheet metal shell of the system through depression, and the condensed water collecting bottle is placed in the groove.

The box silence oil-free air compression system, wherein: the transparent acrylic protective plate fixed by magnetic attraction is arranged at the position flush with the sheet metal shell, and the condensed water receiving bottle is made of semitransparent or transparent materials.

The box silence oil-free air compression system, wherein: a silencer is also arranged at the automatic water outlet of the adjustable safety valve.

The air compression system is provided with the buffer air storage tank for collecting the condensed water and automatically discharging the condensed water under the condition that the air compression system does not shut down, so that the running stability of the air compression system is improved. And the electronic dewatering device is arranged in front of the buffering air storage tank, so that the phenomenon of icing and blocking caused by over-low temperature of the electronic dewatering device can be avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the box-type silent oil-free air compression system provided by the invention.

Fig. 2 is a schematic view of a shock-absorbing structure of the air compressor.

Fig. 3 is a schematic view of a drain structure of the buffer air tank.

Fig. 4 is a schematic view of the installation of the condensate receiver bottle.

Description of reference numerals: filters 1, 2; an air compressor 3; a compressor head 31; a base 32; a compressor support frame 321; a spring 33; a screw 34; a nut 35; a spring bushing 36; water removers 4, 5; an electronic water removal device 6; a buffer gas storage tank 7; a condensed water discharge port 71; an adjustable safety valve 72; an automatic drain port 73; a condensed water receiving bottle 74; a sheet metal housing 75; an acrylic guard plate 76; magnetic attraction 77; a pressure reducing valve 8; a pressure gauge 9; an oil-water separator 10.

Detailed Description

As shown in fig. 1, the present invention provides a box-type silent oil-free air compression system, which comprises:

the two-stage filters 1 and 2 are relatively coarse filters, and mainly remove some impurities with larger particles;

an air compressor 3, the inlet end of which is connected with the two-stage filters 1 and 2;

the two-stage water removers 4 and 5 are connected with the outlet end of the air compressor 3;

an electronic water removal device 6 arranged downstream of the two-stage water removers 4, 5;

a buffer gas storage tank 7 connected to the downstream of the electronic water removal device 6;

a pressure reducing valve 8 connected downstream of the buffer gas storage tank 7;

a pressure gauge 9 disposed on a downstream line of the pressure reducing valve 8;

and the oil-water separator 10 is connected with a downstream pipeline of the reducing valve 8.

The working principle of the invention is as follows: the main component of the air compressor is an air compressor 3, and two-stage filters 1 and 2 are arranged at the air inlet of the air compressor 3 to remove part of impurities and dust in the air. The air is compressed by the air compressor 3 and then becomes compressed gas with a certain pressure and a high temperature. In order to effectively remove moisture in the compressed air, the compressed air is condensed by two stages of water removers 4 and 5. The temperature of the compressed air is high and can reach about 100 ℃, and after passing through the dehydrator, the compressed air can be rapidly cooled, so that the moisture in the compressed air can be rapidly condensed. In order to ensure the best condensation effect, a mode of air cooling the water removers 4 and 5 is adopted. Although compressed gas is subjected to two-stage air cooling, the compressed gas still contains certain water vapor, and after air cooling, an electronic water removal device 6 is arranged, namely, the temperature of the compressed gas is reduced by 10-20 ℃ through a forced heat exchange means, so that residual moisture in the gas can be further condensed out. The compressed air comes out of the electronic dehydrator and enters the buffer air storage tank 7. The buffer gas storage tank 7 is used for storing compressed gas, relieving the influence of air pressure fluctuation on the pressure of the gas outlet and discharging condensed water in the front two-stage condensation copper pipe and condensed water in the electronic dewatering. The compressed gas from the buffer gas storage tank 7 can be subjected to pressure regulation through the pressure reducing valve 8, and the pressure after pressure regulation can be visually reflected through the pressure gauge 9. The gas output from the pressure reducing valve 8 is the gas at the pressure required by the operator. Relatively large droplets of condensed water in the compressed gas are discharged by gravity in the gas receiver 7, but some of the atomized water still enters the following flow path along with the compressed gas. The compressed air mixed with the water mist moisture enters the oil-water separator 10 after pressure regulation, and in the oil-water separator 10, the compressed air generates drastic changes of flow direction and speed, and the moisture with density larger than that of the compressed gas is separated out by means of inertia effect. Thus, the compressed gas can be discharged from the compressor and enter the gas-using equipment after passing through the 4-stage drying and water-removing device.

The invention is optimized mainly from two places in order to solve the noise pollution of the laboratory and liberate the eardrum of the operator.

First, the air compressor acts as a main source of noise, and its vibration is transmitted to the case. In order to reduce the vibration transmission to the maximum extent, the invention adopts a new installation mode, namely suspension installation. As shown in fig. 2, only at least four springs 33 are connected between the compressor head 31 and the casing, and one end of each spring 33 is connected to a lower end side of the compressor head 31 and the other end is connected to the casing obliquely upward. In this embodiment, the box only shows a base 32, a compressor support frame 321 is fixed on the base 32, and the other end of the spring 33 is fixed on the compressor support frame 321 through a screw 34, a nut 35 and a spring bushing 36. In this way, through the connection of the spring 33 with a certain strength, when the compressor is in operation, the vibration of the compressor head 31 is absorbed and relieved by the spring 33, and the vibration of the box body is greatly reduced. Experiments prove that the noise phase difference between the suspension type installation and the traditional rubber anchor installation is about 5-8 dB.

Secondly, in order to prevent the noise of the compressor head 31 from being transmitted to the outside, the present invention further sticks egg-nest type sound absorption cotton (conventional product, not shown) to the inside of the case. The egg nest type sound absorption cotton can buffer and absorb sound waves, so that the sound waves are not reflected out on the surface of the sound absorption cotton.

The two schemes are matched for use, the former weakens the vibration influence of the compressor, and the latter lightens the noise influence of the compressor, so that the noise expressed by the whole equipment is very low, and the requirement of silencing laboratory equipment is met.

In order to remove the moisture in the compressed air, the invention adopts a four-time water removal device. The first two stages of dewatering devices are centrifugal type dewaterers and are matched with air cooling, compressed air flows through the copper pipe dewaterers with the length of about 5m, and compressed air is cooled through the good heat exchange performance of the copper pipes. The way can quickly condense the compressed gas and centrifugally separate condensed water through the spiral structure of the dehydrator, and has simple structure and small occupied space. This type of water removal is suitable for primary rough water removal. The third-stage dewatering device is an electronic dewatering device 6, the cold end of the semiconductor refrigeration sheet is used for cooling the compressed gas, the hot end of the semiconductor refrigeration sheet is attached with a radiating fin and is matched with the fin for air cooling, as long as the heat of the hot end can be radiated, the cold end of the semiconductor refrigeration sheet can be lowered to a very low temperature, and the temperature can be generally lowered to below-15 ℃ under the condition of no load. The compressed air carries a part of condensed moisture into the buffer air storage tank 7. A condensed water discharge port 71 is formed at the bottom of the buffer gas tank 7, and the moisture condensed at the first three stages is discharged from the bottom condensed water discharge port 71 of the buffer gas tank 7. The compressed air enters a subsequent pipeline, enters a fourth-stage dewatering device, namely an oil-water separator 10 after pressure regulation, oil drops and water drops with the density larger than that of the compressed air are separated out through sudden changes of flow direction and speed in the oil-water separator 10 under the action of centrifugation, the separated moisture and impurities are discharged through a drain outlet at the bottom, the dry compressed air flows out of the oil-water separator, and the discharged air compressor enters the gas-using device.

The invention also has the advantage of the connection position for water removal of each stage. The first two stages of water removal and air cooling water removal are used for cooling the temperature of compressed air from 85-100 ℃ to about room temperature, and are particularly suitable for primary large-scale water removal. The compressed air is cooled to a lower temperature in the third stage of electronic dehydration to further condense out the moisture in the compressed air. As can be seen from the system flow diagram of fig. 1, the electronic water trap 6 is advantageously installed on the front side of the buffer tank 7, as compared to the rear side of the pressure regulating valve 8. If installed on the rear side of the pressure regulating valve 8, the flow of compressed air there is regulated according to the customer usage. If the flow rate used by a customer is very small, for example, when a mercury dispenser is used, the flow rate is about 0.2L/min, or the customer uses compressed air, the gas outlet does not continuously have gas to flow out, and when an air inlet electromagnetic valve of the mercury dispenser is closed, the gas does not flow out from the gas outlet of the air compressor, at the moment, the gas also does not flow in the electronic dehydrator, and the temperature of the cold end of the semiconductor refrigeration piece can be reduced to be below-10 ℃ due to the small load when the semiconductor refrigeration piece is used for continuous refrigeration. When the temperature is maintained at the temperature for a long time, the pipeline inside the electronic dewatering device is inevitably frosted and iced, so that the pipeline is blocked, and compressed gas cannot be discharged from the gas outlet. Therefore, the electronic dewatering device 6 is selected to be arranged at the front side of the buffer air storage tank 7. No matter the flow and pressure of the air outlet of the device are, the air compressor 3 generates all compressed air, the temperature of the electronic dewatering device 6 is maintained above 0 ℃, and the problem of freezing and blocking when the flow is small or the air outlet is not exhausted is avoided. The last stage of water removal is an oil-water separator which does not rely on temperature change to remove water any more and has the main function of separating water which is in the form of mist and cannot be removed through the action of gravity. The several stages of water removal are arranged according to the temperature change condition, the existence form of water and the characteristics of the respective water removal, and once the sequence and the position are not reasonable, the optimal effect can not be achieved.

The invention can also automatically drain water. Drainage among the present small-size air compressor machine mainly divide into two kinds of forms, and firstly manual drainage, the outlet is located the bottom of gas holder, needs to shut down the back at the machine, before the start again, and artifical manual completion. The drainage mode requires that the running time of the air compressor cannot be overlong, otherwise, condensed water cannot be discharged in time, the service life of the air supply system can be shortened, and the product quality of air supply is influenced. The other is that the tail end of the water outlet is connected with an electromagnetic valve, a timer and an automatic drainer. The timer is used for setting the drainage interval and the time for draining water, so that automatic drainage is realized. Although the method releases manpower, the drainage in the gas using process can cause the system pressure to be suddenly reduced, and the adverse effect is generated on gas using equipment. The invention integrates automatic drainage and overpressure safety protection.

As shown in fig. 3, an adjustable safety valve 72 is connected to a condensate discharge port 71 at the bottom of the buffer tank 7, and the adjustable safety valve 72 is compatible with a system overpressure protection and an automatic drain function. After the adjustable safety valve 72 has set a safety pressure value, once the pressure inside the buffer gas tank 7 exceeds the safety pressure value (for example, when the air outlet of the air compressor is closed, such a situation occurs), the adjustable safety valve 72 will be opened, the pressure gas will carry the condensed water collected at the condensed water outlet to be discharged from the automatic water discharge port 73 through the adjustable safety valve 72, so that the pressure in the system is reduced below the safety pressure value, and at this time, the adjustable safety valve 72 will be restored to a normally closed state. In the air compression system provided by the invention, the air compressor 3 can work continuously, so that the air pressure in the buffer air storage tank 7 is always higher than the safe pressure value, namely, part of residual gas is discharged from the adjustable safety valve 72 all the time, and condensed water is discharged together at any time. In this way, the operation of draining the condensed water neither requires a shutdown nor a sudden change in the system pressure.

In addition, a silencer 78 is disposed at the automatic water discharge port 73 of the adjustable safety valve 72 to eliminate noise generated when compressed gas is discharged during operation.

Another advantage of the present invention is that a condensate receiver bottle 74 is placed outside the device, as shown in fig. 4. In some humid areas in south china, where the plant is operating for 8 hours, the condensate can reach 400 ml. Such a quantity of water is discharged directly to the laboratory floor in the conventional apparatus, which causes the laboratory floor to retain water for a long time and is difficult to evaporate in the rainy season. In consideration of this problem of the user, the present invention provides the automatic drain port 73 of the apparatus at the middle portion in cooperation with a 1L condensate receiving bottle 74. A condensate receiving bottle 74 is placed outside the apparatus for the convenience of the user to dump the condensate. In order not to increase the external dimension of the device, the sheet metal shell 75 is recessed to form a groove, and then the condensed water collecting bottle 74 is placed in the groove. At the position flush with the sheet metal shell 75, a transparent acrylic protective plate 76 with a magnetic attraction 77 is arranged to protect the collection bottle from falling off accidentally. The condensed water receiving bottle 74 is a semitransparent or transparent plastic bottle, and a high-transparency acrylic protective plate 76 is additionally arranged, so that a user can clearly see the amount of condensed water in the receiving bottle and timely pour the condensed water.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.