CN211435359U

CN211435359U - High-efficiency low-temperature vacuum oil filter

Info

Publication number: CN211435359U
Application number: CN201921673817.XU
Authority: CN
Inventors: 刘威; 王潘峰
Original assignee: Kunshan Wsd Environmental Protection Equipment Co ltd
Current assignee: Kunshan Wsd Environmental Protection Equipment Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-09-08
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a high-efficient low temperature vacuum oil filter, include: the vacuum treatment system for treating the waste oil comprises a vacuum tank with a cavity, a condensing system connected with the vacuum tank and at least one pressure reducing device for reducing the pressure inside the vacuum tank; the heating system is used for heating the waste oil led into the vacuum tank, the heating system is connected with the vacuum tank through a heating circulating system, the heating circulating system leads the heated waste oil into the vacuum tank, and the incompletely-treated waste oil is led into the heating system again for a new cycle; and the filtering system is used for filtering oil and is at least connected with the heating system. The equipment has low manufacturing cost, good economy, low energy consumption and high wastewater treatment efficiency.

Description

High-efficiency low-temperature vacuum oil filter

Technical Field

The utility model relates to a high-efficient low temperature vacuum oil filter belongs to the environmental protection equipment field.

Background

At present, oil filters are widely applied to industries such as petrifaction, petroleum, coal, electric power, military machinery and the like, and are special equipment for removing water and gas in oil. The condition that the water and the mechanical impurities are mixed into the mechanically used oil in the transportation, storage and use processes can be effectively prevented. As is known to all, impure oil has certain influence on the performance and service life of mechanical equipment, and the mixed water can cause the corrosion of the metal surface and reduce the viscosity of the oil; the mixed impurities may wear the working surface, leaving a flaw or the like on the working surface.

The vacuum oil filter is a filter set which removes solid impurities and water in impure oil by using a vacuum evaporation-filter element filtering method. The vacuum oil filter mainly comprises a vacuum separator, a pressure reducing device, an oil discharge pump, a coarse filter, a fine filter and the like, wherein the pressure reducing device, the oil discharge pump, the coarse filter, the fine filter and the like are connected with the vacuum separator through pipelines. The oil is purified in the vacuum separator, the water vapor in the oil is discharged through the pressure reducing device, the purification of the oil is realized, and the purified oil is discharged through the oil pump.

However, the conventional vacuum oil filter generally adopts a smaller evaporation chamber and a smaller spray head for spraying, so that the moisture in the oil cannot be fully evaporated, and the moisture content in the oil cannot be reduced. In addition, when oil is subjected to oil-water separation in the conventional vacuum separator, a large amount of foam is generated, a large amount of defoaming agent is consumed, and the treatment efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient low temperature vacuum oil filter can increase the water yield and the play water quality of water that waste oil was handled, improves the quality of producing oil simultaneously, and can avoid its in use to produce the foam, its low in manufacturing cost, economic nature are good, the energy consumption is low, waste oil treatment is efficient.

In order to achieve the above purpose, the utility model provides a following technical scheme: a high efficiency, low temperature vacuum oil filter comprising:

the vacuum treatment system for treating the waste oil comprises a vacuum tank with a cavity, a condensing system connected with the vacuum tank and at least one pressure reducing device for reducing the pressure inside the vacuum tank;

the heating system is used for heating the waste oil led into the vacuum tank, the heating system is connected with the vacuum tank through a heating circulating system, the heating circulating system leads the heated waste oil into the vacuum tank, and the incompletely-treated waste oil is led into the heating system again for a new cycle;

and the filtering system is used for filtering oil and is at least connected with the heating system.

Further, the vacuum tank comprises an evaporation flow distribution assembly arranged inside, and the evaporation flow distribution assembly comprises a central pipe and a plurality of evaporation plates annularly arranged around the central pipe; each evaporating plate comprises a branch pipe communicated with the central pipe and a guide plate connected with the branch pipe.

Furthermore, the central tube is provided with a connecting hole, the branch tubes are provided with water outlets, the branch tubes are communicated with the central tube through the connecting hole, so that liquid flowing into the branch tubes from the central tube flows onto the guide plate through the water outlets, and the guide plate is provided with a guide channel corresponding to the water outlets.

Further, the condensation system comprises a condensation tank and a distilled water circulating system acting on the condensation tank; the condensation tank comprises a first outer cylinder communicated with the distilled water circulating system, a middle cylinder arranged in the first outer cylinder, and a cold water pipe group arranged in the middle cylinder and communicated with the vacuum tank; the distilled water circulating system is connected with the first outer cylinder and the cold water pipe group so as to circularly cool the distilled water entering the condensing tank in the tank.

Further, the distilled water circulation system comprises a first pipeline, a water pump and a second pipeline, wherein two ends of the first pipeline are respectively connected with the lower part and the upper part of the first outer cylinder, the water pump is arranged on the first pipeline, and the second pipeline is connected with the cold water pipe group and the first pipeline.

Further, the pressure reducing device comprises a water ejector and a centrifugal water pump, the water ejector is arranged at the intersection of the first pipeline and the second pipeline, and the centrifugal water pump is a water pump of resin on the first pipeline.

Further, the heating system includes a heating tank, a refrigerant circulation system connecting the heating tank and a condensing tank, and the heating circulation system; the heating tank comprises a second outer cylinder and a heating pipe set arranged in the heating tank, and the heating pipe set is connected with the vacuum tank; the refrigerant circulation system is connected with the second outer cylinder.

Furthermore, the heating circulation system comprises a third pipeline flowing from the heating pipe group to the vacuum tank and a fourth pipeline flowing from the vacuum tank to the heating pipe group, and a circulating pump is arranged on the fourth pipeline.

Further, the refrigerant circulation system includes a fifth pipe flowing from the second outer tube to the middle tube, and a sixth pipe flowing from the middle tube to the second outer tube; and an expansion valve for throttling and refrigerating the waste oil is arranged on the fifth pipeline, and a compressor for compressing and releasing heat of the refrigerant is arranged on the sixth pipeline.

Furthermore, the vacuum tank comprises an upper tank body and a lower tank body which are butted, a steam outlet is arranged at the head part of the upper tank body, and a spiral separator for separating impurities from steam is arranged close to the steam outlet; an oil outlet is formed in the bottom of the lower tank body, and the heating circulating system is connected with the oil outlet.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1) the refrigeration principle is skillfully applied, the heating tank and the condensing tank are communicated with each other through the refrigerant, and the liquefying process and the vaporizing process of the refrigerant are fully applied, so that the heating of the waste oil and the cooling of the distilled water are respectively realized, the energy transfer in the conversion process of each physical phenomenon is fully utilized, and the requirement on external energy is saved;

2) the distilled water circulation pipeline has double functions by combining with the pressure reducing device, and distilled water in the condensation tank is continuously circulated through the pressure reducing device, so that negative pressure is formed in the vacuum tank, water in waste oil in the vacuum tank can form steam as soon as possible, and the steam is not required to be vaporized at 100 ℃, so that the waste oil treatment efficiency is accelerated;

3) on the other hand, the distilled water circulating pipeline is combined with the pressure reducing device, so that the distilled water continuously and repeatedly exchanges heat with the refrigerant in the middle cylinder to realize circulating temperature reduction, and the temperature of the discharged distilled water is lower and meets the emission standard;

4) the heating tank and the condensing tank serve as a heat exchanger and a storage, so that the manufacturing cost is greatly reduced, and the economy is improved;

5) the evaporation and distribution assembly is arranged in the vacuum tank, so that the evaporation efficiency of the water in the waste oil heated by the heating tank in the vacuum tank is greatly improved, and the one-time evaporation amount is greatly increased, thereby further improving the waste oil treatment efficiency and indirectly reducing the energy consumption;

6) the evaporation plates are arranged in an annular manner, the number of the evaporation plates can be selected according to actual conditions, the device is convenient to combine, and the cost is low;

7) the evaporation plate is arranged in an annular mode, the length of the evaporation plate in the vertical direction can be changed at any time, and therefore the situation that the vacuum tank generates more foams at the bottom of the tank due to incomplete evaporation of water in waste oil in the using process is avoided.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

FIG. 1 is a schematic diagram illustrating the control of a high efficiency, low temperature vacuum oil filter according to a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the evaporative manifold assembly of the warm vacuum oil filter of FIG. 1;

FIG. 3 is a schematic structural view of a branched water outlet in the evaporation and distribution assembly shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a high-efficiency evaporation canister in the high-efficiency, low-temperature vacuum oil filter shown in FIG. 1;

FIG. 5 is a schematic diagram of the high efficiency flash tank in the high efficiency, low temperature vacuum oil filter of FIG. 1;

FIG. 6 is a schematic diagram of the control of the vacuum processing system in the high efficiency, low temperature vacuum oil filter of FIG. 1;

FIG. 7 is a schematic diagram illustrating the control of the heating system in the high efficiency, low temperature vacuum oil filter of FIG. 1;

fig. 8 is a schematic control diagram of a refrigerant cycle system in the high-efficiency low-temperature vacuum oil filter shown in fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

It should be noted that: the terms such as "upper", "lower", "left", "right", "inner" and "outer" of the present invention are described with reference to the drawings, and are not intended to be limiting terms.

Referring to fig. 1 to 8, a high-efficiency low-temperature vacuum oil filter 100 according to a preferred embodiment of the present invention includes a vacuum processing system 1, a heating system 2 and a filtering system 3, wherein the vacuum processing system 1 includes a vacuum tank 11, a condensing system 12 connected to the vacuum tank 11, and a pressure reducing device 13 connected to the condensing system 12 and communicated with the vacuum tank 11. An evaporation shunting assembly 10 is arranged in the vacuum tank 11, and the evaporation shunting assembly 10 comprises a central pipe 101 and a plurality of evaporation plates 102 which are annularly arranged around the central pipe 101; each of the evaporation plates 102 includes a branch pipe 103 communicating with the central pipe 101 and a baffle plate 104 connecting the branch pipe 103.

The central tube 101 is provided with a connecting hole (not shown), the branch tube 103 is provided with a water outlet 1031, and the branch tube 103 is communicated with the central tube 101 through the connecting hole, so that the liquid flowing into the branch tube 103 from the central tube 101 flows onto the flow guide plate 104 through the water outlet 1031. Preferably, each branch pipe 103 is provided with two sets of water outlets 1031, and the two sets of water outlets 1031 make the liquid flow to two opposite sides of the diversion plate 104. The number of the connection holes is equal to or greater than the number of the evaporation plates 102, and the connection holes to which the evaporation plates 102 are not connected may be closed by providing a sealing member. Through the design, the number of the evaporation plates 102 in the evaporation flow distribution assembly 10 can be set according to actual needs, and the assembly and disassembly are convenient.

As those skilled in the art know, when waste liquid evaporates at the bottom of the tank, foam is easily generated, and thus, an antifoaming agent is often required in the water treatment process, undoubtedly increasing the cost and reducing the treatment efficiency. In this embodiment, guide plate 104 preferably sets up in the below of being in charge of 103 along the direction of height, can set up the length of evaporating plate in vertical direction according to actual need to guarantee that the waste liquid evaporates completely on guide plate 104, thereby avoid high-efficient vacuum tank to produce the condition of more foam at the tank bottoms because the evaporation of moisture is incomplete in the use. In order to avoid the waste liquid flowing from different water outlets 1031 to the diversion plate 104 from merging, a diversion channel (not shown) corresponding to the position of the water outlet 1031, such as an arc channel concavely arranged on the diversion plate 104, may be further arranged on the diversion plate 104.

The evaporation plate 102 is provided with a connecting member 1021, and the connecting member 1021 is connected with the vacuum tank 11 to fix the evaporation and distribution assembly 10. In this embodiment, the connecting member 1021 is a fixing plate with a threaded hole, and the evaporation distribution assembly 10 is screwed to the vacuum tank 11 through the fixing plate. On the day, in other embodiments, the connection may also be made by using other conventional connection means.

The evaporation plate 102 is made of an oil-proof material, or the surface thereof is coated with an oil-proof layer to prevent oil from being collected on the evaporation plate 102.

In addition, the applicant finds in practical application that the waste liquid entering the branch pipe 103 from the central pipe 101 has a large flow velocity, the waste liquid tends to slide off obliquely on the guide plate 104 under the action of inertia, and due to the difference of the inertia, part of the waste liquid is overlapped together, so that the distribution area of the waste liquid on the guide plate 104 is small, the water in the waste liquid is not completely evaporated, and more foams are generated at the bottom of the tank. Therefore, the applicant provides a baffle plate downward at the water outlet 1031 to ensure that the waste liquid flowing out from the water outlet 1031 can be uniformly distributed on the flow guide plate 104, so that the waste liquid has the maximum evaporation area.

In this embodiment, the vacuum tank 11 is preferably formed by butting an upper tank 111 and a lower tank 112, a steam outlet 113 is provided at the head of the upper tank 111, and an oil outlet 114 is provided at the bottom of the lower tank 112. A waste oil inlet pipeline 5 and a cleaning liquid inlet pipeline 6 are further arranged on the vacuum tank 11, and the waste oil inlet pipeline 5 is connected with a central pipe 121 of the evaporation and distribution assembly 10 through a connecting pipe 115, so that waste liquid is guided into the evaporation and distribution assembly 10. The vacuum tank 11 adopts a butt joint mode of an upper tank body and a lower tank body, so that mechanisms such as the evaporation and diversion assembly 10 are conveniently installed in the vacuum tank, and meanwhile, the vacuum tank is convenient to disassemble and maintain. Of course, in other embodiments, other design manners may be adopted, such as butt-joint of the left and right tank bodies, and the design may be performed according to actual needs. In order to ensure better quality of the water separated from the vacuum tank 11, a spiral separator 116 may be provided near the steam outlet 113 for removing solid particles or other impurities from the steam.

The condensation system 12 comprises a condensation tank 121 and a distilled water circulating system 122 acting on the condensation tank 121, wherein the condensation tank 121 comprises a first outer cylinder 123 communicated with the distilled water circulating system 122, a middle cylinder 124 arranged in the first outer cylinder 123, and a cold water pipe group 125 arranged in the middle cylinder 124 and communicated with the vacuum tank 1. The cold water pipe group 125 is a plurality of independent pipes which are communicated at both ends. The lower ends of the cold water pipe groups 125 are collected into the distilled water circulation system 122 through pipes.

The distilled water circulating system 122 includes a first pipe 1221 having one end connected to a lower portion of the first outer tube 123 and the other end connected to an upper portion of the first outer tube 123, the pressure reducing device 13 is disposed on the first pipe 1221 and includes a centrifugal water pump 131 and a water jet 132, and the distilled water circulating system 122 further includes a second pipe 1222 connected to the cold water pipe set 125 and the water jet 132, respectively. The centrifugal water pump 131 circulates the water in the cold water pipe group 125 in the condensation tank 121 and the distilled water circulation system 122 at a high speed, and when the distilled water passes through the water jet device 132, a negative pressure is formed in the vacuum tank 11. Under the negative pressure state, the temperature required to be reached by vaporization of water in the waste oil is lower, so that after the waste oil heated to a certain temperature by the heating system 2 enters the vacuum tank 11, the water therein can be rapidly vaporized and evaporated to form water vapor, the water vapor is absorbed into the cold water pipe group 125 by the negative pressure and exchanges heat with the refrigerant in the middle cylinder 124 to form liquid distilled water, then flows to the water jet 132 through the second pipe 1222 and converges into the first pipe 1221, under the action of the centrifugal water pump 131, enters the first outer cylinder 123 from the upper part of the first outer cylinder 123, exchanges heat with the refrigerant in the middle cylinder 124 to reduce the temperature again, and then enters the first outer cylinder 123 from the upper part of the first outer cylinder 123 through the centrifugal water pump 131 from the bottom of the first outer cylinder 123 via the first pipe 1221, so as to continuously circulate and reduce the temperature, thereby converting the high-temperature steam into low-temperature distilled water, when the distilled water in the first outer cylinder 123 is full, the distilled water overflows from the distilled water outlet 9.

The heating system 2 comprises a heating tank 21, a heating tube set 22 arranged in the heating tank 21, and a heating circulation system 23 connected with the vacuum treatment system 1. The heating tank 21 includes a second outer tube 211, and the heating pipe group 22 is accommodated in the second outer tube 221 and is communicated with the heating cycle system 23, in this embodiment, the heating pipe group 22 is a plurality of independent pipes which are communicated at two ends. The heating cycle system 23 includes a third pipe 231 flowing from the heating pipe group 22 to the vacuum tank 11 and a fourth pipe 232 flowing from the vacuum tank 11 to the heating pipe group 22, and the fourth pipe 232 is provided with a circulation pump 233. The waste oil entering the vacuum tank 11 is pumped into the heating pipe group 22 by the circulation pump 233, and exchanges heat with the refrigerant in the second outer tube 21, so as to raise the temperature, and the heated waste oil flows back to the vacuum tank 11 through the third pipe 231.

A refrigerant circulation system 4 for circulating refrigerant is disposed between the heating system 2 and the condensing system 12, and the refrigerant circulation system 4 includes a fifth pipe 41 flowing from the second outer tube 211 to the middle tube 124 and a sixth pipe 42 flowing from the middle tube 124 to the second outer tube 211. A compressor 43 is provided in the sixth pipe 42, and an expansion valve 44 is provided in the fifth pipe 41. The compressor 43 compresses the gaseous refrigerant from the middle cylinder 124 into the second outer cylinder 211, and in the process, the gaseous refrigerant is compressed into liquid refrigerant, so that a large amount of heat is released, and heat exchange is performed between the gaseous refrigerant and the waste oil in the heating tube set 22 in the second outer cylinder 211, so that the temperature of the waste oil in the heating tube set 22 is increased; the liquid refrigerant then passes through the expansion valve 44 into the middle tube 124, and in the process, the liquid refrigerant of middle temperature and high pressure is vaporized and converted into a gaseous refrigerant of low temperature and low pressure by the throttling action of the expansion valve 44, and simultaneously absorbs a large amount of external heat, so that heat exchange is performed in the middle tube 124 with the distilled water in the cold water tube bank 125 and the first outer tube 123, thereby lowering the temperature of the distilled water in the cold water tube bank 125 and the first outer tube 123.

The filtering system 3 comprises a coarse filtering device 31 arranged at the waste oil inlet 5 and a fine filtering device 32 arranged at the oil outlet 114, wherein in the embodiment, the coarse filtering device 31 and the fine filtering device 32 are filtering exhaust valves; indeed, in other embodiments, other filtering devices may be used, and are not limited herein. The waste oil enters the coarse filtering device 31 through the waste oil inlet 7, enters the heating tank 21 for temperature rise, and then enters the vacuum tank 11 through the third pipeline 231 for oil-water evaporation separation. Due to the low air pressure in the vacuum tank 11, the water in the waste oil is easily evaporated to form water vapor and enters the condensing system 12 through the vapor outlet 113. The separated oil enters the fine filtering device 32 through an oil outlet 114 at the bottom of the vacuum tank 11. The oil liquid meeting the oil outlet quality flows out through the oil outlet 8 and is stored, and other liquid or oil liquid not meeting the quality flows into the heating tank 21 through the seventh pipeline 33 and the waste oil stock solution again for further evaporation and separation.

The high-efficiency low-temperature vacuum oil filter is also provided with various types of valves, sensors and the like, which should be known to those skilled in the art and will not be described in detail herein.

To sum up, the utility model discloses a high-efficient low temperature vacuum steamer has following effect:

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A high efficiency, low temperature vacuum oil filter, comprising:

2. The high efficiency, low temperature vacuum oil filter of claim 1, wherein said vacuum vessel includes an internally disposed vaporization manifold assembly comprising a central tube and a plurality of vaporization plates annularly disposed about said central tube; each evaporating plate comprises a branch pipe communicated with the central pipe and a guide plate connected with the branch pipe.

3. The high efficiency, low temperature vacuum oil filter according to claim 2, wherein the central tube has a connection hole, the branch tubes have water outlets, the branch tubes are connected to the central tube through the connection hole, so that the liquid flowing from the central tube into the branch tubes flows to the baffle plate through the water outlets, and the baffle plate has a flow guide passage corresponding to the positions of the water outlets.

4. The high efficiency, low temperature vacuum oil filter according to claim 1, wherein the condensation system comprises a condensation tank and a distilled water circulation system acting on the condensation tank; the condensation tank comprises a first outer cylinder communicated with the distilled water circulating system, a middle cylinder arranged in the first outer cylinder, and a cold water pipe group arranged in the middle cylinder and communicated with the vacuum tank; the distilled water circulating system is connected with the first outer cylinder and the cold water pipe group so as to circularly cool the distilled water entering the condensing tank in the tank.

5. The high efficiency, low temperature vacuum oil filter according to claim 4, wherein said distilled water circulation system comprises a first pipe having both ends connected to the lower and upper portions of said first outer tube, respectively, a water pump provided on said first pipe, and a second pipe connecting said cold water pipe group and said first pipe.

6. The high efficiency, low temperature vacuum oil filter of claim 5, wherein said pressure reducing means comprises an aqueous jet disposed at the intersection of said first conduit and said second conduit and a centrifugal water pump disposed on said first conduit.

7. The high efficiency, low temperature vacuum oil filter of claim 4, wherein said heating system comprises a heating tank, a refrigerant circulation system connecting said heating tank and a condensation tank, and said heating circulation system; the heating tank comprises a second outer cylinder and a heating pipe set arranged in the heating tank, and the heating pipe set is connected with the vacuum tank; the refrigerant circulation system is connected with the second outer cylinder.

8. The high efficiency, low temperature vacuum oil filter of claim 7, wherein said heating circulation system comprises a third conduit from said heating tube set to said vacuum tank and a fourth conduit from said vacuum tank to said heating tube set, said fourth conduit having a circulation pump disposed thereon.

9. The high efficiency, low temperature vacuum oil filter of claim 7, wherein said refrigerant circulation system comprises a fifth conduit from said second outer cartridge to said middle cartridge, and a sixth conduit from said middle cartridge to said second outer cartridge; and an expansion valve for throttling and refrigerating the waste oil is arranged on the fifth pipeline, and a compressor for compressing and releasing heat of the refrigerant is arranged on the sixth pipeline.

10. The high efficiency, low temperature vacuum oil filter according to claim 1, wherein said vacuum vessel comprises an upper vessel body and a lower vessel body which are butted, a head of said upper vessel body is provided with a vapor outlet, and a spiral separator for separating impurities from vapor is provided near said vapor outlet; an oil outlet is formed in the bottom of the lower tank body, and the heating circulating system is connected with the oil outlet.