Device for gas compression and drying

FIELD: machine building.

SUBSTANCE: gas compressing and drying device comprises a multistage compressor with a low pressure stage, a high pressure stage and a delivery branch pipe, and an adsorption dehumidifier with a drying zone and a regeneration zone; at that an intercooler is set between the low pressure stage and the high pressure stage. The device is additionally equipped by a heat exchanger comprising a main chamber with an inlet part and outlet part for the first primary fluid medium, and the ends of the heat exchanger tubes are connected to a separate input chamber and output chamber for each tube bundle; the first tube bundle forms a cooling circuit of the intercooler used to heat the gas from the high pressure stage for the purpose of adsorption dehumidifier regeneration.

EFFECT: simplified design and installation, reduced prime cost of the device.

14 cl, 4 dwg

 

The technical field to which the invention relates.

The invention relates to a device for compressing and drying gas.

The level of technology

Known tubular heat exchangers consist of a casing in which one or more tubes are held in the longitudinal direction between the first input and the output part for the first fluid and the second input, and an output part for the second fluid, the first fluid flows through the tubes and the second fluid flows in the annular space, thereby, the heat transfer between two fluid environments.

In known heat exchangers in the inner space of the casing between the second input and output parts can be arranged partitions, guides the flow of the second fluid, for example, a zig-zag route.

The fluid medium is deprived of the opportunity to flow from the second input part directly to the second output part, and the heat transfer is improved.

In addition, it is known that the compression of gas associated with the production of a large quantity of heat.

Also, there are heat exchangers in which a part of the compressed gas is passed through the primary circuit of the heat exchanger, where it transfers heat to another gas or liquid current in the secondary circuit of the heat exchanger, thereby heating this second fluid environment.

Dawn is known device for compressing and drying gas, composed of the compressor device and the drying device and drying device formed area of the drainage containing the desiccant, and a regeneration area.

Also there are devices which utilize the heat produced during compression of the gas.

So, this heat can be used, for example, to heat the gas stream passed through a regeneration zone, with the objective of reducing the total energy consumption of the compressor.

The disadvantage is the complexity of the device as a whole. Moreover, because of the multiplicity of required connections there is a significant risk of leakage. Installation costs are also quite high.

The U.S. patent 2003/0188542 described a device in which part of the compressed air away after stage medium pressure compressor, and then fed to the regeneration zone adsorption desiccant, after which this part of the compressed air cooling remove absorbed water and the remaining air again komprimiert with the main stream of compressed air before passage of the main flow through the drainage area of the adsorption dryer and exits in the form of dried compressed air.

The disadvantage of this device is that after the secondary pressure of the compressed g the C has a much lower temperature, than compressed gas after the low pressure stage, and therefore the allotted portion of the gas is able to absorb much less water from the adsorption medium, which does not allow to quickly dry the adsorption medium.

For the recovery of the heat produced during compression of the gas, you want the heat exchanger, which is often used tubular heat exchanger.

Already known for tubular heat exchangers consist of a casing in which one or more tubes are held in the longitudinal direction between the first input and the output part for the primary fluid and the second input, and an output part for the secondary fluid to the primary fluid flowing in the annular space, and the secondary fluid flows through the tubes, thereby, the heat transfer between two fluid environments.

In known heat exchangers in the inner space of the casing between the second input and output part can be arranged partitions, directing the stream of primary fluid, for example, a zig-zag route.

The primary fluid medium deprived of the opportunity to flow from the second input part directly to the second output part, and the heat transfer is improved.

Disclosure of inventions

The aim of the present invention is the elimination of one or more of wiseup anutech defects and/or other disadvantages by designing a device for compressing and drying gas, which contains a multistage compressor with stage low-pressure stage of high pressure and discharge pipe and an adsorption dryer with drainage area and the regeneration zone, and between the degree of low pressure and a high degree of pressure placed intermediate the fridge, and the device is further provided with a heat exchanger connected to the input part of the above-mentioned discharge pipe, and the above-mentioned heat exchanger includes a casing with multiple cameras, including the main camera with the above-mentioned input part and an output part for the first primary fluid flowing in the main chamber over or around pipes passing through the main chamber; when this is provided at least two tubular beam passing through the main chamber, each of which is designed to pass secondary or tertiary fluid through the main chamber to exchange heat with the primary fluid medium; and the first of tube bundles forms a cooling circuit of the above-mentioned intermediate fridge and serves to heat the gas from the high pressure stage for regeneration of the adsorption dryer.

The advantage of this device is its great simplicity of manufacture.

In the simplest embodiment, heat is mennica main camera, choke on the one hand pipe Board, with the above-mentioned side of the main camera is equipped with a cover, forming a side chamber between the cap and pipe the Board, and this side of the camera contains the input and output camera for secondary and tertiary fluid, attaching with this U-shaped tubes to the tube plate.

In another preferred embodiment, the main chamber limit from two sides of the pipe boards and on each side is placed the cover, forming two side chambers between each respective pipe Board and cover in front of her.

The advantage is a smaller number of required connections, which minimizes the risk of leakage due to the coupling of the connection.

Another advantage is the relatively low cost of installation of this device. Thanks to the use of a heat exchanger according to the present invention leads to a more efficient method of compressing and drying gas, which, of course, a positive effect on the cost of gas to be delivered.

Finally, it is clear that the use of such a device for compressing and drying gas allows you to combine the functionality of two heat exchangers in a single heat exchanger, which, of course, reduces material costs.

In the most practical embodiment, the compressor performs as many who stupenchatogo compressor with low speed and high pressure, and between the levels of high and low pressure placed intermediate the fridge, and the input portion of the heat exchanger is connected with the discharge pipe of the compressor, and the first tube bundle forms a cooling intermediate circuit of the refrigerator that is used to heat the gas flowing from the high pressure stage for regeneration of the adsorption dryer.

The advantage is the implementation of a very efficient device, because the heat that is released when the compressed gas can be disposed of using to heat part of the gas coming from the high pressure stage, bringing the above-mentioned part of the gas to a high temperature, which allows it to be used as regenerating gas for the adsorption desiccant.

An additional advantage is that by combining the two heat exchangers in a single heat exchanger volume integral of the heat exchanger can be made significantly smaller than the combined volumes of the two separate heat exchangers, which allows to achieve significant space savings.

Another additional advantage is that the scope of application of the heat exchanger is not limited to devices for compressing and drying gas, on the contrary, the heat exchanger can also be used without adsorbtsionnoye, doing some minor improvements.

Brief description of drawings

To better demonstrate the characteristics of the invention in the following example, without any limiting nature, with reference to the attached drawings described the preferred implementation of the device according to the invention, in which:

figure 1 schematically depicts a cross-section of the first variant implementation of the heat exchanger for this device.

figure 2 depicts an alternative implementation of the heat exchanger shown in figure 1;

figure 3 depicts an example of a device for compressing and drying gas according to the invention;

figure 4 depicts an alternative implementation of the heat exchanger shown in figure 2.

The implementation of the invention

Figure 1 schematically depicts a first variant implementation of a tubular heat exchanger 1 for the device according to the invention, which mainly contains a closed cover 2 with membrane 3, which in this case, but not necessarily, is cylindrical.

The casing 2 is closed on both sides of the lid 4, which is attached to the cylindrical casing 3, for example, by bolts, not shown in the drawing, which can be screwed into the threaded holes 5B in the shell 3 through the through hole 5A in the lid 4.

In this embodiment, the casing 2 sabiedrobai Board 6, release side chamber 8 and the main chamber 7, while the main camera 7 is limited by the shell 3 and the cover 4, while the side of the camera 8 is limited to pipe the Board 6 and the cover 4, which is located on this side.

In the cylindrical shell 3 for the passage of the primary fluid through the main chamber 7 is arranged in the input part 9 and the output part 10.

In the depicted embodiment, the input part 9 and the output part 10 are on the same side of the shell 3, but of course, they can also be located in other places of the shell 3.

Through the main chamber 7 of the heat exchanger 1 are at least two tube bundle 11-12, each of which is designed to pass secondary or tertiary fluid through the main chamber 7 for performing heat exchange with the primary fluid medium flowing over or around the tube 13 passing through the main chamber 7.

The ends of the tubes 13 of the first beam 11 is connected to the first input chamber 14 and the first output chamber 15 for the secondary fluid. Similarly, the ends of the tubes 13 of the second beam 12 is connected with the second input chamber 16 and the first output chamber 17 for tertiary fluid. According to the invention the input and output camera 14-17 completely disconnected with each other.

In this regard, in the depicted embodiment, the side chamber 8 is divided in several p is remarkabe 18 four polimery 19, accordingly, the first input chamber 14, the first output chamber 15, the second input chamber 16 and the second output chamber 17 to the second tube bundle 12.

In the depicted embodiment, the tubes 13 are U-shaped, with one side of each of the tubes 13 of the first beam 11 is open in the first input chamber 14, and the other side is open to the first output chamber 15. Similarly, the tube 13 of the second beam 12 are opened in the second input and output camera 17-18, thus the contours of secondary and tertiary fluid completely disconnected with each other.

In the embodiment shown in figure 1, the main camera 7 baffles 20 (also called reflective septa), the shape and relative location is chosen so as to make the primary the fluid flow on a particular route, such as zigzag, so that the primary fluid flowed through the main camera in a few moves, changing the direction of movement.

In this regard, the partitions 20 pass from one side of the main chamber 7 at a certain distance to the other side of the main chamber 7, forming unwrapping ducts 21 for the primary fluid, and consistent unwrapping ducts 21 are alternately first on one then on the other side of the heat exchanger 1.

The partitions are preferably of tablepath stainless steel but the invention does not limited to.

In another embodiment, the invention make duct diameter, almost matching or slightly exceeding the diameter of the tubes, the partitions 20, forming a limited clearance between the partitions 20 and the tubes 13.

The presence of partitions 20 in the heat exchanger 1 is not required.

Figure 2 schematically depicts another preferred variant implementation of a tubular heat exchanger 1 for the device according to the invention, which generally includes a closed casing 2 with the main chamber 7, which has a first input and output parts 9-10 for the primary fluid flowing through the main chamber 7 over or around the tube 13 passing through the main chamber 7.

In this embodiment, the input and output parts 9-10 are on opposite sides of the shell 3 as far as possible from each other, when viewed in the axial direction.

This more or less diagonal location of the input and output parts contributes to a more efficient heat transfer.

Of course, perhaps the location of the input and output parts 9-10 for the primary fluid medium on the same side of the shell 3, or in other places of the shell 3.

Unlike the implementation shown in figure 1, figure 2 main Luggage is limited to two tube sheet and 6, and on each side of the main chamber 7 has a cover 4 forming two side chamber 8 between each respective tube Board 6 and an opposing cover 4.

In the most practical embodiment of the invention the tube 13 passing through the main chamber 7, is fixed on one of the two tube plates 6A, this tube sheet 6A is sandwiched between the casing 2 and the cover 4A, located in front of this tube plate 6A.

Tube 13 is hermetically fixed in the through holes tube plates 6, for example, soldering or similar means.

To compensate for thermal expansion, it is desirable that the tube plate 6 differed from each other, and to one of the two tube plates 6B was smaller, which will allow the tube Board 6V floating.

On the cross-section shown in figure 2, the dimensions of the tube plate, which is fixed tube 13, is larger than at the other end of the tube plate 6B, and the lower tube sheet 6B slidably fixed to the ring between the shell 3 and the cover 4B.

In this embodiment, the side chamber 8 located on both sides of the tube plates 6, are connected through parallel tubes 13, passing through the main chamber 7 and passed through the through holes 22 in the tube plate 6.

In this embodiment, of course, can also be PR is usmotreny partitions, but this is not required.

In accordance with the preferred characteristics of the heat exchanger side of the chamber 8 is divided into two or more subchambers 19.

In this regard shows the cross section shows one or more straight vertical wall or bulkhead 18 and the seal 23 between the edges of the walls 18 and pipe Board 6.

In the variant shown in figure 2, each side of the chamber 8 are arranged two polimery 19 for the passage of secondary or tertiary fluid medium.

On the cross-section shown in figure 2, the first Badkamer 19A is connected with the first tube bundle 11 in the main chamber 7, and all of the tubes 13 of the beam 11 are opened in the same podomoro 19C on the other side of the heat exchanger 1.

Polimery 19A and 19B, thus, are on the same line relative to each other.

Similarly, two other polimery 19C-19D can be connected to one another, the second tube bundle 12.

Preferably, polimery 19 for secondary and tertiary fluid were completely disconnected with each other, and each fluid circulated in its own circuit, designed for this fluid.

Although the shown cross-section may lead to the conclusion about the equality of the number of tubes 13 into two beams 11-12, it is also possible to link with a different number of tubes 13 for the secondary and tertiary fluid.

the diameters of the tubes 13 for the secondary and tertiary fluid, of course, can also differ from each other.

You can also make the tubes 13 for the secondary and tertiary fluid different internal forms and/or supply some of the tubes 13 ribs or other means for facilitating heat transfer between primary and secondary and/or tertiary fluid environments.

In the simplest embodiment, the first tube bundle 11 for the secondary fluid is located in the upper half of the heat exchanger 1 and the tube of the second beam 12 for tertiary fluid located in the lower half.

In the main chamber 7 at the level of the wall 18 and the seal 23 left a gap 24 between the first and second group 11-12 tubes.

The design of the heat exchanger, of course, is not limited to the depicted variants, and possible alternative options for the layout, such as a concentric arrangement in which the tubes of the first group 11 are arranged around the axis of the heat exchanger 1, and the second group 12 of the tubes forms a concentric ring of tubes around the first group of 11.

In another possible arrangement of the tubes of the first beam 11 are distributed on the first sector of a circle, and tubes of the second beam 12 is divided by a different sector of a circle.

Two sectors, of course, should not be of the same size, and together they can form a complete circle or other figure.

The operation of the exchanger 1 p the invention is very simple and consists in the following.

The primary fluid flow into the main chamber 7 through the input part 9 in the shell 3, and when the flow through the main chamber 7 of the primary fluid through any of the walls 20 is directed along a particular route, as shown by arrows P in figure 1.

Two fluids, which may vary or not to vary, occur at the same time through the tubes 13 of the main chamber 7, that is, the secondary fluid flows through the tubes 13 of the first beam 11 in the direction of the arrow Q, and the tertiary fluid flows through the tubes 13 of the second beam 12 in the direction of R.

In the depicted cross-section directions Q and R secondary and tertiary fluid opposite to each other, but this is not a strict requirement of the device according to the invention.

As a result, in the main chamber 7 will be the heat transfer between the primary fluid medium and a secondary fluid medium on the one hand and between the primary fluid medium and the tertiary fluid medium from the other side.

Needless to say that the current through the tubes 13 secondary and tertiary fluid medium can be a gas, gas mixture or fluid or secondary fluid medium can be a gas, and the tertiary fluid medium can be a liquid or a similar substance.

The heat exchanger 1 is particularly suitable for the device 25 according to the invention for compressing and OS is the loud gas, the layout of which is shown in figure 3 as an example.

This device 25 consists of a compressor device 26 and adsorption dryer 27 and has an input 28 connected to the inlet of the compressor unit 26, and 29, through which the dried compressed gas is directed into the consumer network, not shown in the drawing.

Pictured compressor unit 26 is a multi-stage compressor, in this case comprising three series-connected compressor element 30-32 forming step 30 low-pressure stage 31 medium pressure stage 32 high pressure.

Drive each compressor element 30-32 serves as the motor 33, and after each compressor element 30-32 fridge 34-36, respectively, there are two intermediate fridge 34-35 and end refrigerator 36.

Each of the refrigerators 34-36 cools the gas, komprimierung corresponding compressor element 30-32.

Preferably, the device 25 were refrigerators liquefied gas, and the cooled gas is passed through refrigerators 34-36 as the primary fluid, and a cooling medium is passed through the tubes as a secondary fluid.

Between the tread 30 low pressure stage 31 medium pressure before the intermediate hole is dildocam 34 has a heat exchanger 37, which together with the interim refrigerator 34 in the device according to the invention are combined in the heat exchanger 1.

Figure 3 the heat exchanger 1 is shown schematically by a rectangle around the heat exchanger 37 and the intermediate refrigerator 34.

Preferably the heat exchanger 1 has an input part 9 for compressed gas coming from the stage 30 low pressure, and the output part 10 connected to the input stage 31 medium pressure.

The heat exchanger 37 has an input chamber 14, which is to drain in the direction of the arrow Q a quantity of compressed gas is connected directly with the outlet pipe 39 of the high pressure stage 32 through pipe 38.

In addition, the heat exchanger has an output chamber 15 connected to the regeneration zone adsorption desiccant 27.

Intermediate refrigerator 34 has an input chamber 16 and outlet chamber 17, which serve as input and output of the external cooling circuit, for example, for a stream of water flowing through the intermediate refrigerator 34 in the direction of arrows R.

In the depicted arrangement, the entire gas stream, komprimierung step 30 low pressure, flows through the heat exchanger 37 and through an intermediate refrigerator 34 in the direction of arrows R.

Adsorption dryer 27 belonging to, for example, to the type of dryers, rotary drum, has an area of 40 Regener the tion and zone 41 drainage, filled with desiccant, the desiccant with the help of the engine alternately conducted through the zone 41 dehumidification and regeneration zone 40.

After cooling to limit the refrigerator 36 compressed gas from stage 32 high pressure through the ejector 42 is directed through the zone 41 drying, and after drying send in a consumer network through the outlet 29.

The gas leaving the heat exchanger 37 via the outlet chamber 15, sealcoat to the dryer 27 and passed through a regeneration zone 40 for subsequent Association, after passing through the condenser 43 and the ejector 42, with the gas having passed through the zone 41 drainage.

Obviously, the combined heat exchanger device according to the invention is bi-functional and works as a first heat exchanger that performs the role of intermediate refrigerator 34, in which the external cooling fluid environment, and as a second heat exchanger 37, in which the allotted portion of the hot gas from stage 32 high pressure, first and foremost, optionally heated, bringing the gas into contact with the gas from the zone 30 low pressure, the temperature of which is shown in the layout above the temperature of the compressed gas stage 32 high pressure.

In this way achieve a more efficient mode of adsorption desiccant 27.

It is obvious that the image is " a device the heat of compression of the first stage 30 low pressure Recuperat, unlike the better known more simple devices, in which the heat escapes with a cooling medium flowing through the first intermediate refrigerator 34.

Furthermore, an additional advantage of this device is no need for external heating element for heating the regenerating gas and the ability to make smart refrigerator 34 less.

Figure 4 depicts another possible variant of the heat exchanger device according to the invention, which differs from the variant shown in figure 2, so that the input chamber 16 and the output chamber 17 for tertiary fluid are in the same cover 4.

In this case, one of the two side chambers 8 like the extra wall, in order to completely separate from each other, the input and output camera 16-17 for tertiary fluid medium.

In the depicted cross-section of the tertiary fluid input chamber 16 flows through the lower tube bundle 12 to the outlet chamber 17 through the upper tube bundle 12 through the chamber 44.

Although not depicted in figure 4 partitions 20 in the main chamber 7, it is possible with partitions 20, providing a flow of primary fluid in the main chamber 7 in a few moves with the change of direction.

For specialists in the art it is obvious that the who is one of the many other options in which, for example, the cover 4 includes an input chamber 14 and the outlet chamber 15 of the secondary fluid, and the other cover 4 contains the inlet 16 and outlet chamber 17 tertiary fluid medium.

Also, do not exclude the possibility of the two input cameras 14-16 and two output cells 15-17 in the same cover to another cover could be made without the input and output chambers.

For specialists in the art it is obvious that there are many choices of location and size of different subchambers, and that certain options for the layout may be more appropriate, for example, depending on the practical application.

The present invention is in no way limited to the embodiment given as an example and shown in the drawings, the device according to the invention can be implemented in various variants, without leaving the scope of the invention.

1. Device (25) for compressing and drying gas containing multistage compressor stage (30) low-pressure stage (36) high pressure and the discharge pipe (39) and an adsorption dryer (27) with area (41) drainage area (40) of regeneration, between step (30) low pressure stage (36) high pressure placed intermediate the refrigerator (34), and the mouth of austo (25) is further provided with a heat exchanger (1), connected to the input part (9) of the above-mentioned discharge pipe (39), characterized in that the above-mentioned heat exchanger (1) comprising a casing with multiple cameras, including the main chamber (7) with the above input part (9) and an output part (10) for the first primary fluid flowing in this main chamber over or around the tubes (13)passing through the main chamber (7); for this purpose there are at least two beams (11 and 12) of the tube (13)passing through the above-mentioned main camera (7), each of which is designed to pass secondary or tertiary fluid through the main chamber to exchange heat with the primary fluid medium; and the ends of the above-mentioned tubes (13) are connected respectively with separate entrance chamber (14 and 16) and the outlet chamber (15 and 17) for each tube bundle (11 and 12); and the above-mentioned first tube bundle (11) forms a cooling circuit of the above-mentioned intermediate refrigerator (34)that is used to heat the gas from stage (36) high pressure for regeneration of the adsorption dryer (27).

2. The device according to claim 1, characterized in that the main camera (7) contains several input and output parts (9 and 10) for multiple primary fluid.

3. The device according to claim 1, characterized in that the main Luggage is limited to two tube sheet and (6), and on each side above the main camera has a cover (4), forming two lateral chamber (8) between each respective tube Board (6) and cover (4) in front of her.

4. The device according to claim 3, characterized in that the tube (13) is fixed in one of the above-mentioned tube plates (6).

5. The device according to paragraph 3, characterized in that the above-mentioned side of the camera (8) contain the input and output of the camera (14-17).

6. The device according to claim 5, characterized in that the above-mentioned side of the camera (8) is divided into two or more polimery (19), and that the appropriate polimery (19)located on both sides of the main chamber (7), connected by beams (11 and 12) of the tube (13) thus, to have formed at least two separate circuit for at least the corresponding primary and tertiary fluid.

7. The device according to claim 1, characterized in that the main chamber (7) has a partition (20), more specifically located between the input to the output part (9 and 10) for the primary fluid.

8. The device according to claim 1, characterized in that the heat exchanger is adapted for two or more additional fluid, and that the corresponding side of the camera (8) on both sides of the main chamber (7) is subdivided by bulkheads (18) on the above-mentioned input and output chambers (14, 15, 16 and 17), respectively, on the first input and the output of the camera (14 and 15), United with the first group (11) of the tubes (13), for the passage of the secondary fluid and the second inlet / outlet chamber (16 and 17), United with the second group (12) of the tube (13), to skip the tertiary fluid medium.

9. The device according to claim 8, characterized in that between the bulkheads (18) and pipe Board (6) is provided by the seal (23).

10. The device according to claim 8, characterized in that between the first group (11) and the second group (12) of the tube has a gap (24).

11. The device according to claim 1, characterized in that the tube (13) of the first and second groups (11 and 12) distributed according to a sector of a circle.

12. The device according to claim 8, characterized in that the tube (13) are distributed concentrically, with the first group (11) of the tubes is within the range, and the second group (12) of the tube is located in a ring around the above-mentioned range.

13. The device according to claim 1, characterized in that the input and output part (9 and 10) of the heat exchanger (1) are located on the lateral surface of the shell (3), the bounding main chamber (7).

14. The device according to claim 1, characterized in that the first input and the first output chamber (14 and 15) are on opposite sides of the heat exchanger (1), while the second input and the output of the camera (16 and 17) are located on the same side of the heat exchanger (1).



 

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1 dwg

FIELD: power engineering.

SUBSTANCE: shell-and-tube heat exchanger comprises joined identical sections, every of which comprises a bundle of tubes fixed in tube plates, installed in a vessel, collector chambers of tube and shell media, at the same time each section is equipped with end rigid hollow covers, in the side walls of which perpendicularly to the longitudinal axis of the section there are through holes arranged, at the same time the sections are connected to each other along axes of the provided holes in covers via sealing elements between side walls of covers, cavities of which form a collector chamber of tube medium. Each section is additionally equipped with at least one rigid shell tightly covering the vessel and installed in a gap between end covers, in areas adjacent to tube plates, in side walls of which jointly with the vessel there are through holes arranged, the axis of which lies in the same plane with axes of holes of end covers, at the same time the sections are additionally connected to each other along axes of arranged holes in the shell and the vessel via the specified sealing elements between side walls of the shell, cavities of which form a collector chamber of shell medium.

EFFECT: unification and reduction of heat exchanger dimensions.

4 cl, 3 dwg

FIELD: power industry.

SUBSTANCE: to vertical shell-and-tube condenser containing cylindrical housing with lower and upper inlet and outlet branch pipes of heated heat carrier, bank of internal heat exchange tubes and external tubes installed coaxially so that inter-tube through annular channels are formed, as well as lower and upper grids for attachment of internal tubes and grid for attachment of upper ends of external tubes, at that, on the above cylindrical housing there is cover and bottom with branch pipes for supply of heat carrier to be cooled and discharge of cooled heat carrier, there additionally introduced is grid for attachment of lower ends of external tubes, which forms together with lower grid of internal tubes and cylindrical housing of condenser the distributing chamber of the heated heat carrier directed to inter-tube through annular channels. At that, some part of space between lower grid of internal tubes and bottom of condenser is interconnected by means of the tubes fixed in lower grids with volumetric space enclosed between external tubes, their grids and cylindrical housing that is equipped with discharge branch pipe of non-condensed gases. At that, discharge branch pipe of cooled heat carrier is equipped with floating valve.

EFFECT: stable and reliable operation.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention pertains to oil and gas industry and it can be used for gas treatment at oil and gas condensate deposits in order to reduce capital and operational costs. Gas treatment installation is equipped with automatic control system (ACS) connected to shutoff and control valves including the first throttle valve at gas feed line, the second throttle valve installed at the line connecting primary and low-temperature separators, the third and fourth throttle valves installed at lines connecting outputs of primary and low-temperature separators for liquid-gas mixture respectively with degasifier, the fifth throttle valve installed at line of liquid discharge from degasifier and the sixth throttle valve installed at line of gas release from degasifier. The installation is equipped with the first flow metre at gas feed line and the second flow metre at line of gas discharge from low-temperature separator connected to ACS and having ability to regulate degree of opening and closure for the first throttle valve, temperature sensor at input of low-temperature separator connected to ACS and having ability to regulate degree of opening and closure for the second throttle valve, liquid level gage in primary and low-temperature separators and degasifier connected to ACS and having ability to regulate degree of opening and closure for the third. Fourth and fifth throttle valves respectively and pressure nozzle in degasifier connected to ACS and having ability to regulate consumption of inhibitor depending on pressure of gas in feed line or its flow rate. ACS uses software system for gas treatment regulation which includes regulation of process parameters in automatic mode.

EFFECT: designing installation for primary treatment of gas supplied from gas wells in clusters that operates in unmanned mode due to use of software system for automatic regulation of gas treatment.

1 dwg

FIELD: chemistry.

SUBSTANCE: method of dehydrating a gas containing CO2 is based on preparing a two-phase mixture with expansion thereof and separating the liquid phase from the mixture in a separator. Raw gas is cooled by adding liquid CO2 with water dissolved therein; the obtained mixture is separated into a gas phase and a liquid phase containing water; the gas phase is expanded to obtain a liquid containing liquid CO2 and water; the liquid is partially or completely fed for mixing with raw gas, wherein expansion is carried out to temperature below the hydrate formation point.

EFFECT: higher degree of dehydration of the gas.

12 cl

FIELD: heating.

SUBSTANCE: gaseous helium cooling and cleaning device includes a cryostat, a liquid nitrogen level transmitter, a heat exchanger arranged in gaseous nitrogen environment, a heat exchanger placed in liquid nitrogen, a filter collecting frozen hazardous impurities, a helium electric heater and a nitrogen electric heater for regeneration of saturated filter. Device is equipped with two units installed in parallel after the filter, each of which includes an in-series located electropneumatic valve and a check valve. One unit is connected to the heat exchanger located in gaseous nitrogen environment and provided with two cavities, and the other one is connected to helium supply pipeline to the consumer after additional check valve installed after helium electric heater.

EFFECT: high cleaning quality of helium from hazardous impurities at provision of requirement for widening the temperature range of the environment and tanks filled with cryogenic fuel components.

1 dwg

FIELD: instrument making.

SUBSTANCE: proposed heat exchanger comprises, at least, two heat exchange sections made with single tube plate whereto condensate collection chambers introduced to the inlet of every said section and furnished with condensate discharge branch pipes. Heat exchange tubes inside chambers are provided with holes or fractures.

EFFECT: reduced metal input and vapour circuit drag, lower costs.

8 cl, 7 dwg

FIELD: chemistry.

SUBSTANCE: device for purification of liquefied hydrocarbon gases from acidic components includes pipeline 1 of supply of flow of liquid hydrocarbons for purification, connected with evaporation unit 2, which has pipeline 7 of output of flow of liquefied hydrocarbon gases and pipeline 3 of output of gas phase flow, connected with unit 4 of removal of acidic components, provided with pipeline 5 of output of purified gas phase flow. Installation is provided with unit 6 of absorption of gas phase purified flow from unit of removal of acidic components, as well as connected through additionally installed unit 8 of cooling with pipeline 7 of output of flow of liquefied hydrocarbon gases from evaporation unit 2. Absorption unit 6 has pipeline 9 of output of purified flow of liquefied hydrocarbon gases and pipeline 10 of output of undissolved part of gases. Unit 6 of absorption of gas phase purified flow can be connected with pipeline of output of gas phase purified flow from unit 5 of removal of acidic components through additionally installed unit 11 of gas phase washing or through additionally installed unit 17 of gas phase drying.

EFFECT: invention makes it possible to purify flow of liquefied hydrocarbon gases from acidic components and obtain purified hydrocarbons in liquid form.

1 dwg, 1 ex

FIELD: power engineering.

SUBSTANCE: method to produce liquefied hydrocarbon gases includes stabilisation of a deethanised gas condensate by extraction of hydrocarbon gases from it, their cooling, mixing of liquefied hydrocarbon gases (LHG) with water, washing of methanol and phase separation into LHG and a water-methanol solution. At the same time at the washing stage the mixture of LHG with water is dispersed in water phase, then coalescence of finely dispersed drops of the water-methanol solution is carried out, afterwards phase separation is carried out. A plant to produce liquefied hydrocarbon gases comprises the following serially joined components: a rectification tower of gas condensate stabilisation, a cooling device, a mixing device, at least one reservoir for methanol washing and a separating reservoir. At the same time at least one reservoir for methanol washing and the separating reservoir are arranged in the form of sections of a reservoir filter, separated by two partitions with coalescent filter cartridges installed in them to form three sections in the inner cavity of the specified filter, besides, two sections represent reservoirs of methanol washing, and the third section - a separating reservoir.

EFFECT: using the invention will make it possible to minimise capital and current costs for a plant due to its simplification.

5 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to chemistry. Hydrogen sulphide is removed from natural gas flow bearing methane CH4 and H2S to cool said flow in heat exchanger 13, 16, 18. At least, portion of cooled flow is fed via feed pipeline 19, 21 into cyclone expander-separator 1. Here, cooled flow is expanded in nozzle 4 to be additionally cooled to temperature and pressure below dew point of hydrogen sulphide and separated in tubular separation chamber 9 into fraction of cooled low-density fluid. Said fraction is rich in methane and hydrogen sulphide depleted. Another fraction of aforesaid cooled flow represents high-density fluid rich in hydrogen sulphide and methane-depleted. Low-density cooled fluid flow is fed in gas product pipeline 33 communicated with heat exchanger 14 to cool down natural gas flow fed into cyclone expander-separator 1. High-density cooled fluid flow is fed in fractionator 8 for additional separation.

EFFECT: higher yield.

4 dwg

FIELD: oil and gas industry.

SUBSTANCE: initial separation, recuperative gas cooling, condensing of liquid phase on all stages of gas cooling, gas separation from condensed liquid, heat and mass transfer of gas with condensate is performed in counter-flow simultaneously and in the same volume.

EFFECT: application of the present method allows increasing the efficiency of hydrocarbon gas preparation at reduction of number of devices used for its implementation and reduction of capital expenses for installation mounting.

4 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: proposed gas separator is made up of cylindrical high-pressure vessel. It incorporates crude gas or gas-fluid mix feed union, dried gas discharge union at case top section and separated fluid mix discharge union at case bottom. Besides, it comprises distributor provided with antiswirler, gauze agglomerator, set of cyclones and bottom for collection of separated fluid mix. Gas separator is flexibly coupled with support platform for the latter to support the former horizontally and/or in parallel with platform base so that it may be placed from transport position into installation position at an angle to said platform, preferably, vertical position. Set of cyclones is mounted on bearing structure and consists of block-sections with built-in one to eight tubular cyclones with circular cylindrical walls and inner straight-flow hollow barrel to allow transfer of separated fluid. Cyclone barrel features variable inner open flow area and comprises confuser, swirler and diffuser arranged streamwise. Besides it comprises hollow core communicated with swirler and, via channel, with recirculation device and fixed screw vanes.

EFFECT: higher operating performances and ecological characteristics.

19 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: in separation method of gas mixtures containing water vapours, inlet gas is expanded in rotating flow in cyclone separator channel so that the flow containing no hydrates and flow enriched with water are obtained; at expansion stage some portion of gas, which flows near walls, is heated; heating is performed so that temperature of internal surfaces of cyclone separator channel is higher than hydrating temperature. In addition, expansion degree of flow in cyclone separator is maintained so that Pinlet/Pclean>1.1 (where Pinlet - full pressure of inlet gas, Pclean - full pressure of flow at the outlet of cyclone separator channel).

EFFECT: enlarging operability range of gas mixture separation plants containing water vapours and using gas expansion in cyclone separators, and providing their operability under conditions favourable for formation of hydrates in separator channel.

4 cl, 3 dwg

Gas drier // 2516636

FIELD: process engineering.

SUBSTANCE: invention relates to chemical industry and can be used for compressed air drying. Proposed device drying device with casing divided in at least three sections nearby rotor axial end for three gas flows to pass there through: main, regenerative and cooling flows. First section (6) makes the main flow outlet, second section (7) makes the cooling flow inlet and third section (8) makes the regenerative flow inlet. Case comprises at least two sections nearby rotor second axial end: first section (9) making the main flow inlet and second section (10) making the cooling and regenerative flows outlet. Second section (7) consists of two interconnected parts. First part (7A) makes the cooling flow inlet while second part (7B) makes an extra cooling flow outlet.

EFFECT: perfected design.

6 cl, 8 dwg

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