ES2457392T3 - Injection cooler - Google Patents

Abstract

Injection cooler (10) for cooling hot steam conducted in a pipe (20), a) with an injection cylinder (30) arranged at least by sections in the pipe (20), which is provided with several nozzles (32) of injection, b) with a regulator element (50), which can be connected with a connection (52) to a refrigerant supply, c) a valve arrangement (60) being provided in the regulator element (50), with which it can the coolant supply to the injection nozzles (32) in the injection cylinder (30), and d) is regulated with coolant supply lines (70), which are provided between the injection cylinder (30) and the element (50). ) regulator, e) a separate coolant supply line (70) being provided for each injection nozzle (32), characterized f) because the ends (71) of the coolant supply lines (70) associated with the cylinder (30) ) of injection are fixed to a first plate (73) of common flange, which can be fixed to a receiving surface (36) in the injection cylinder (30), and g) because the ends (72) of the coolant supply lines (70) associated with the regulator element (50) are fixed to a second plate (74) of common flange, which can be fixed to a receiving surface (56) of the regulator element (50).

Description

Injection cooler

The invention relates to an injection cooler for cooling hot steam conducted in a pipe according to the preamble of claim 1.

Installations that operate with steam as a source of energy, for example the installations of power generation companies or thermoelectric power plants in block, are usually configured so that the steam used must present a certain temperature and temperature at the destination site. determined pressure However, generally the steam generated by the steam boiler is initially overheated, so it has to be cooled to a lower temperature. The so-called injection refrigerators are used for this, which are used directly in the vap duct: Jr and inject refrigerant, p: Jr

15 example water, in the steam flow. Injected water Due to the differential pressure between water and steam, it is sprayed in the steam duct. It evaporates and overheats, while the steam itself cools.

Known injection coolers usually consist of a housing with a

20 admission for the cooling water and an injection cylinder that enters the steam duct, which has several injection nozzles arranged next to each other. A regulating spindle is guided in the housing, which is mounted with one end in the injection cylinder connected to the housing and carries a hollow cone therein, in the area of the injection nozzles. The spindle is driven according to the temperature in the steam duct. Make with it a

career movement The career position corresponding to a regulation signal free

a certain control cross section in the hollow cone for the entry of the cooling water into the cylinder. At the same time, regulation perforations are released towards the nozzle chambers in the injection nozzles, with which the water reaches the steam flow.

5 EP 0 682 762 BI also employs a stroke system for controlling the amount of cooling water, specifically a piston rod, which is axially guided in a hollow cylinder-shaped cooling water conduit disposed between an opening of Water inlet and injection nozzles. The piston rod carries inside a head of

10 nozzle, on the end side, a regulating piston, which releases or blocks the injection nozzles depending on the position.

This type of injection coolers has the disadvantage that the regulating piston, during its actuation movement, can only release the nozzle openings one by one by means of its linear arrangement adopted in each case, ie the injection nozzles only they can always be connected from top to bottom or from the bottom: in an established order, which has an adverse effect on the distribution of water inside the steam duct and therefore unfavorably on the cooling of hot steam. Likewise, the seals and guiding elements of the piston and spindle require very demanding performance due to the

20 duct pressure generally very high, from 20 bar to more. 300 bar, so the life of the injection refrigerator is limited. The consequence is short maintenance intervals; The operating costs are very high.

For a longer service life of the seals and the guiding elements of the refrigerator

Injection, document DE 85 33 682 VI provides that the regulating spindle or the piston rod no longer make any stroke movement, except a pivoting movement. Thus, on the one hand, the modification of the cross-sections of regulation of the injection nozzles through a tangential movement occurs. On the other hand, the injection nozzles 5 generally arranged in the longitudinal direction of the injection cylinder can be opened and closed symmetrically around a centrally arranged injection nozzle, which has a favorable effect on the distribution of the cooling water in the steam duct. In addition, the pivoting piston has a favorable impact on the construction size of the injection cooler, because the spindle or piston rod no longer has to exit the

10 housing

However, in this regard it is problematic that all moving parts of the injection cooler are still in the injection cylinder, which is subject to extreme loads inside the steam duct, in particular when the steam temperatures in

15 new installations are above 600 ° C and the pressure of the cooling water amounts to more than 300 bar. Therefore, the wear of the injection refrigerator is very high and regular maintenance and repair work occurs at regular intervals.

To avoid this, document NL 93 01 12: 5 Al proposes that the injection nozzles of the

20 injection cylinders are located inside the steam duct, while the regulating element with its valve arrangement is arranged at a distance thereon. out of the steam duct. Therefore, the regulating element and the injection nozzles are spatially separated and the regulating element is no longer subject to the extreme conditions in the

inside the steam duct.

To supply cooling water to the injection nozzles, in document NL 93 01 125 Al, a separate water line is provided for each nozzle, which is arranged between the regulating element and the injection cylinder. Inside the injection cylinder are

5 configured channels that conduct the cooling water from an associated water line to the corresponding injection nozzle in each case. A piston rod is provided inside the regulating element, which has a regulating piston in a cylindrical chamber. This, depending on the running position, releases the individual water pipes that lead to the injection nozzles.

10 Therefore, no moving element is present in the injection cylinder inside the steam duct. However, in this respect it is disadvantageous that all the cooling water pipes have to be connected one by one to the regulating element and to the injection cylinder, which is correspondingly expensive and expensive. In addition, the cylinder of

The injection is fixedly welded with the steam duct, whereby the assembly and disassembly of the injection cylinder are always associated with considerable effort. This is particularly disadvantageous when the injection nozzles or even the entire injection cylinder have to be replaced or when some other failure arises in the injection cylinder. It is also problematic that water pipes and therefore also

20 injection nozzles, due to the stroke stroke of the piston. they can only always be released one after another in an established order. which leads to an irregular distribution of cooling water inside the steam duct. In addition, the stroke piston must always work against the vapor pressure prevailing in the steam duct, so that a discharge perforation is necessary at the connection head of the regulator. If all the feeds are closed, there is therefore a risk that, due to the high water pressure, water will always drip from the injection nozzles into the steam duct, which has an unfavorable impact on a precise regulation of steam temperature

5 The injection cylinder must also have a relatively large diameter, in order to accommodate the individual feeds for the injection nozzles. Therefore, with a large number of injection nozzles, the injection cylinder must have a relatively large diameter.

The aim of the invention is to avoid these and mere disadvantages of the state of the art and to create an improved injection cooler, which is economically constructed with simple means and is easy to handle. In particular, simple and quick assembly and disassembly is intended. In addition, the injection refrigerator must have a long service life and guarantee

15 optimal distribution of cooling water.

The main features of the invention are indicated in the characterizing part of claim 1. They are the subject of claims 2 to 15 configurations.

20 In an injection cooler for cooling hot steam conducted in a pipe, with an injection cylinder arranged at least by sections in the pipe, which is provided with several injection nozzles, with a regulating element, which can be connected with a connection to a refrigerant supply, a valve arrangement being provided in the regulating element, with which the refrigerant supply to the injection nozzles can be regulated

in the injection cylinder, and with refrigerant supply lines, which are provided

between the injection cylinder and the regulating element. a separate coolant supply line being provided for each injection nozzle, the invention provides that the ends of the coolant supply lines associated with the injection cylinder

5 are fixed to a first common flange plate, which can be fixed to a receiving surface in the injection cylinder, and that the ends of the refrigerant supply conduits associated with the regulator element are fixed to a second common flange plate. which can be fixed to a receiving surface of the regulating element.

10 The refrigerant supply lines provided between the injection cylinder and the regulating element initially ensure that the regulating element can be arranged at a distance from the injection cylinder and therefore outside the steam conduit. In this regard, the flange plates of the refrigerant supply ducts make it possible to mount the injection cooler as simple as fast, because the ends of the ducts of

15 coolant supply fixed in each (: a50 to a flange plate is always connected in just one assembly stage together with the injection cooler or the regulating element. Consequently, unlike previously known solutions, the ducts no longer have to be screwed and sealed one by one in the injection cylinder or in the regulating element. This occurs rather in gruJXll, which not only clearly reduces the effort of

20 work. It also clearly decreases the risk of leaks and assembly errors.

An additional advantage of the injection refrigerator according to the invention is that the injection cylinder, if necessary, can be replaced quickly and easily, which must occur regularly when very high temperatures and very high pressures reign inside the steam duct. By means of a simple disassembly of a flange plate, several coolant water supply lines are disassembled at one time, which has a favorable impact on assembly and maintenance costs. There is also the possibility of building the injection refrigerator in a modular way and configuring both the

5 injection and the regulating element as the coolant supply ducts assembled on both sides through the flange plates: as pre-assembled construction units. Accordingly, the invention provides that the coolant supply lines and flange plates form a constructive group.

10 The injection cylinder has a housing, the receiving surface for the first flange plate being configured on an external surface of the housing. Accordingly, the flange plates and coolant supply lines fixed thereto are mounted from the outside in the injection cylinder. In this regard it is also favorable that the housing of the injection cylinder in the area of the receiving surface for the first flange plate is

15 angularly configured in its cross section, for example square, rectangular or polygonal. Thus, the flange plates can (: n rest flat on the injection cylinder housing and be sealed and fixed with respect to the receiving surface reliably.

An important configuration of the invention provides that a core insertion element is provided in the housing, a separate feed channel being configured in the flow insertion with each injection nozzle, which is in flow connection with the associated injection nozzle in each case. Thus, inside the housing for the injection cylinder, no pipes have to be arranged, which has an extremely favorable impact on the construction size of the injection cylinder. This can be configured rather extremely thin, so that the cross-sectional flow inside the steam duct is only insignificantly reduced by the injection cylinder housing.

5 It is advantageous in this regard that the feed channels are perforations made in the core insertion element and / or grooves made in the outer circumference of the core insertion element. These can be distributed evenly across the cross section and circumference of the core insertion element, so that it can be housed

10 a relatively large number of channels in the injection cylinder. Since each feed channel can have its own injection nozzle associated, many injection nozzles can be disposed correspondingly inside the pipe. The cooling effect of the injection cooler is correspondingly high, while the outer dimensions are relatively red; gone, so that the free cross section of the

15 steam duct is only slightly reduced and I: a loss of pressure inside the duct is relatively low.

To ensure the connection of the conduits d, and refrigerant supply to the injection nozzles, each feed channel in the core insertion element is connected to

20 flow through an associated opening in the housing and through a notch associated with the respective opening in the first flange plate with an associated refrigerant feed conduit. Thus, with the placement and fixing of the flange plate on the housing of the injection cylinder, its respective injection nozzle was automatically associated to each coolant supply line correctly. Consequently, assembly errors are ruled out.

It is favorable for manufacturing that the core insertion element is divided in the longitudinal direction of the injection cylinder. In this way the individual subsections 5 can be manufactured separately and can also be mounted in the housing separately, the core insertion element being inserted with drag ;: force and / or shape in the housing. For example, the core insertion element is inserted under pressure in the housing or the housing is hot pressed onto the core. In any case, between the casing and the core no longer necessary nor are unions present by joining of material, which can be loaded or damaged inside the

10 steam duct. In this way the life of the injection cylinder clearly increases. In addition, maintenance cycles can be clearly extended, which has an even more favorable impact on operating costs.

To increase the number of injection nozzles to which refrigerant is supplied in the

Injection cylinder, the injection cylinder is provided with at least two receiving surfaces for receiving first flange plates. However, it is also possible to provide three or more receiving surfaces, the housing being configured with three or four receiving surfaces preferably squarely in its cross-section, while with five or more receiving surfaces a cross-section of pentagonal housing is used or

20 hexagonal In any case, flange plates with coolant supply lines can be mounted on virtually all lateral surfaces of the injection cylinder. In this regard, each flange plate gathers several coolant supply lines in groups, which in turn are made available as pre-assembled construction units.

Another important configuration of the invention provides that the injection cylinder can be secured by means of a flange connection to the pipe. This also reduces the assembly effort, since complicated welded joints are no longer necessary. As regards the flange joint, it is, for example, a conventional flange joint, a flange seal

5 self-sealing according to Uhde-Bredtschneider or of a separable union of components with rotation symmetry according to European patents EP O 775 863 BI and / or EP I 010 931 BI of Mr. Alfrc: d Schlemmenat, to which the content is hereby referred to In its whole.

The regulating element has a housing, the receiving surface being configured for

10 the second flange plate on an outer surface of the housing. Thus, it is possible to incorporate the refrigerant supply lines not only quickly and reliably in the injection cylinder, but also in the regulating element. Its housing is configured for this purpose, in the area of the receiving surface for the sc flange plate, preferably angularly in its cross section, for example square, rectangular or polygonal, so that

15 flange plates can be placed flat, flat and always find an optimal seat.

The valve arrangement for the injection cooler is configured in the housing of the regulator element and therefore outside the steam pipe. It comprises a regulating cylinder, which is arranged in the area of the receiving surface in the housing, the movement being able to move

20 regulating cylinder by means of a regulating spindle, which protrudes through the ends of the housing of the regulating element. Therefore, a drive, for example a motor, a transmission or an actuating lever, can act on the regulating spindle.

According to an important embodiment of the invention, the regulating cylinder is provided with

a longitudinal notch and radial control openings, which are in flow connection with the connection for the supply of refrigerant, with a control opening being provided for each injection nozzle in the injection cylinder and its associated refrigerant supply conduit. In this way it is possible to supply coolant to the injection nozzles

5 in the injection cylinder one by one through the refrigerant conduits, which has a favorable impact on operational safety, since in the event of a failure of a refrigerant supply line, the rest of the supply conditions are not They are affected. There is also the possibility of regulating each injection nozzle in a controlled manner to achieve an optimal cooling effect inside the steam duct.

The invention further provides that each control opening in the regulating cylinder is in flow connection through an associated opening in the housing of the regulating element and through a notch associated with the respective opening in the second flange plate with the conduit of refrigerant supply associated with the respective injection nozzle. So,

15 During the mounting of the flange plates, an automatic association of the refrigerant supply lines with the control openings also occurs, that is, no assembly errors can occur.

Advantageously, the regulating cylinder is mounted so that it can rotate around

20 a longitudinal axis of the housing, the opening cross-section of each opening in the housing of the regulating element can be modified by a rotating movement of the regulating cylinder. Thus, no stroke movement takes place inside the housing of the regulator element, which allows an extremely compact construction mode of the regulator element. Rather, the turning movement takes care that the size of the

cross sections of the openings in the housing of the regulator element are modified by a purely tangential movement. This clearly increases the service life of the seals and the guiding elements inside the regulating element. In addition, the space required for the actuation movement of the regulating cylinder is very small, which impacts even more favorably on the constructive size of the regulating element. An additional advantage of the turning movement is that the control openings, the associated openings in each case in the housing of the regulating element and therefore the individual cooling water supply conduits can be opened and closed practically individually, so that within the steam tube a distribution can be achieved

10 extremely uniform cooling water :.

If necessary, the control openings may be configured at least by notch sections. These control notches are placed on the circumference of the regulating cylinder in a displaced manner with respect to each other and at different heights, so that the

15 openings for the cooling water supply conduits open and close in a controlled manner one after another and symmetrically with respect to each other.

In order to be able to also connect several groups of cooling water supply conduits to the regulating element, in its housing at least two receiving surfaces are provided to receive second wound plates. However, three or more receiving surfaces can also be provided here, the housing being configured with three or four receiving surfaces preferably square in its cross-section, while with five or more receiving surfaces a cross-section of pentagonal or hexagonal housing is used . In any case, on virtually all side surfaces of the injection cylinder,

One or more flange plates with coolant feed ducts can be mounted. In this regard each flange plate brings together several coolant feed ducts in a group, which in turn are made available as pre-assembled building units.

5 If the first and second flange plates of the cooling water supply ducts are configured identically, the handling and assembly of the system are further simplified, because the flange plates can be mounted on both the injection cylinder and in the regulatory element.

The valve arrangement has, in another configuration of the invention, a spherical valve, which is arranged between the regulating cylinder and the connection for the refrigerant supply. It may also be convenient that a choke is arranged between the regulating cylinder and the connection for the refrigerant supply.

Other features, details and advantages of the invention are apparent from the wording of the claims as well as from the following des:; ription of exemplary embodiments with the help of the drawings. They show:

Figure 1, a front view of an injection refrigerator according to the invention, with an injection cylinder 20, a regulating element and a flange construction group configured in the middle with coolant supply lines;

Figure 2, a side view of the 'injection refrigerator of Figure 1;

Figure 3, the refrigerant supply lines provided between the injection cylinder

and the regulatory element, as a flange construction group;

Figure 4, a side view of the injection cylinder; 5 Figure 5, a sectional view of the injection cylinder of Figure 4;

Figure 6, a plan view of a core insertion element of the injection cylinder of Figure 4; Figure 7, a side view of the core insertion element of Figure 6;

Figure 8, a sectional view of the core insertion element of Figure 6;

Figure 9, a side view of the regular element, ador; Y

Figure 10, a sectional view of the regulator element of Figure 8.

The injection cooler designated in Figures I and 2 in general with 10 is designed to

20 its use in a power plant (not shown f: n detail). You must cool hot steam, conducted in a pipeline 20 of the power plant installation, to a predetermined temperature, by injecting a fluid refrigerant, for example water, into the pipeline 20 or into the steam flow.

To this end, the injection cooler 10 has an injection cylinder 30, which is connected by means of a flange connection 34 to the steam pipe 20 and enters at least by sections

in the same. Inside the pipe 20, the. Injection cylinder has several injection nozzles 32, which spray the refrigerant inside the pipe 20. A regulator element 50, which is connected with a flange connection 52 to a refrigerant supply (no

5 represented), regulates the amount and pressure of the refrigerant to be injected into the pipe 20 or steam flow through a valve and throttle arrangement 60, 80, 90.

Between the injection cylinder 30 and the regulator element 50, coolant supply lines 70 are provided, which are assembled in constructive groups B, with a separate coolant supply line 70 being provided for each injection nozzle 32. Figure 1 shows, for a better overview, only one constructive group B with a total of five coolant supply lines 70, while in figure 2 two such constructive groups are shown. Depending on the number of injection nozzles 32, more than two such constructive groups B of supply lines 70 can also be provided.

15 refrigerant, for example three, four or five, which are all connected together to the injection cylinder 30 and the regulator element 50. Each group B can also comprise, if necessary and according to the given spatial relationships, more than five or less coolant supply lines 70.

20 It is important that each constructive group B comprises a number of coolant supply lines 70, the ends 71 of the coolant supply lines 70 being associated with the injection cylinder 30 fixed to a first common flange plate 73 and the ends 72 of the coolant supply lines 70 associated with the regulator element 50, to a second common flange plate 74. The first flange plate 73 is secured to the injection cylinder 30, which for this purpose is provided with one or several flat receiving surfaces 36, while the second flange plate 74 is connected to the regulating element 50, which is also provided with a or several flat receiving surfaces 56, On each flange plate 73, 74, perforations 77 are made on the edge side for receiving thymes, of

5 so that the flange plates 73, 74 can be screwed tightly with the injection cylinder 30 and the regulating element 50.

In the flange plates 73, 74, grooves 75, 76 are also provided, which in each case are in a peer flow connection with an associated coolant supply line 70, so that the coolant can flow without obstacles through flange plates 73, 74 and coolant supply lines 70. As shown in FIG. 3, the notches 75, 76 are arranged in a linear fashion in a row, the coolant supply lines 70 preferably running parallel and at a constant distance from each other. This guarantees a simple geometry of both the injection cylinder and the element

15 regulator, which can be set together narrowly transversely to its longitudinal A, L axes. However, if necessary, the notches 75, 76 and the coolant supply lines 70 can also be provided in another arrangement, for example in a displaced or oblique manner next to each other or in the form of a matrix.

20 Each refrigerant supply line 70 is screwed or welded with the flange plate 73, 74 associated in each case in a pressure tight manner, so that the constructive group B of the flange forms a stable unit !, which can be prefabricated economically and can be handled simply. The coolant supply lines 70 may be rigidly configured and / or at least flexible sections, being

adapted or being able to adapt the shape and development of the ducts 70 to the respective

mounting situation.

To seal the flange plates 73, 74 with respect to the receiving surfaces 36, 56 are

5 provided together (not shown) concentrically to the notches 75, 76, which are partially embedded in the flange plates 73, 74. For this, either the recesses 75,76 are used, which are configured for this purpose, for example, in a staggered manner at the edges, or the joints are inserted in separate grooves (not shown), made separately on the supporting surfaces 78 of flange plates 73, 74. In a complementary or alternative way

10 a single ring seal can also be used, which completely surrounds the recesses 75, 76 on the bearing surface 78.

To further simplify the assembly of the constructive groups B, the first and the second flange plate 73.74 are configured identically. In this way it is possible to fix the flange plates 15 73, 74 either to the inylation cylinder 30, ::! Ction or to the regulating element 50. This effectively prevents assembly errors.

It is noted that, due to the configuration of the refrigerant supply conduits 70 as constructive flange groups B, it is possible to arrange the regulating element 50 at a distance from the injection cylinder 30 and therefore outside the hot steam conduit 20. often at more than 600 ° C in modern power plants. In this way, moving parts are no longer found inside the extremely hot conduction zone, which has an extremely favorable effect on the life of the injection cylinder 30 and the regulating element 50. In addition the effort d (~ assembly of the supply lines 70 of

coolant water is minimized, because these can be assembled as constructive groups B quickly and conveniently in the injection cylinder 30 and in the regulator element 50. In addition, the replacement of components: individual injection cooler 10 is possible quickly and conveniently, because due to the simple assembly and disassembly of the

5 flange plates 73, 74 can also be replaced the injection cylinder 30 and the quick and economical manrac regulator element 50 or can be assembled and disassembled for repair purposes.

As Figure 4 shows, the injection cylinder 30 has a housing 31, which is cylindrically configured in a primary section 3 11 directed to the pipe 20, while a second section 312, directed to the flange construction group B , is squarely shaped in its cross section, forming the outer surface 33 of the housing 31 in the area of the second section 312 Four flat side surfaces 36. These serve as receiving surfaces for the first flange plates 73 of the constructive flange group B. In Figure I it can be seen that the size of the receiving surfaces 36 and the size of the 15 flange plates 73 are adjusted to each other, so that the latter are supported with their support surfaces 78 flat and, : on its entire surface on the receiving surfaces 36. To secure the flange plates 73, threaded perforations 38 are made on the receiving surfaces 36 on the edge sides, which are arranged superimposed on the perforations 77 on the flange plates 73, so that the latter can

20 be atomized firmly with the housing 31 of the injection cylinder 30.

As Figure 4 further shows, openings 37 are made on the receiving surfaces 36 of the housing 31, through which the refrigerant can flow into the injection cylinder 30. The number and arrangement of openings 37 on a surface 36 of

reception correspond to the number and arrangement of the notches 75 in the flange plate 73 associated in each case and therefore to the number of coolant supply lines 70 that are provided in the flange plate 73. If the latter, in the normal state, rests with its bearing surface 78 on the associated receiving surface 36 of the housing 31, then the openings 37 and notches 75 in the flange plate 73 are located congruently. some others, so that the refrigerant can flow without obstacles from each refrigerant supply line 70 into the injection cylinder 30. On the receiving surfaces 36 and on the flange plates 73 the same number of openings 37 or notches 75 may be provided in each case. However, it is also possible, as shown in the figure

10 4, provide on the different surfaces a different number of openings 37 or notches 75. In this last case, a first constructive flange group has for example in total five coolant supply lines 70, while a constructive group The adjacent flange has a total of four coolant supply lines 70.

15 The openings 37 flow into the interior of the housing 31 in an essentially cylindrical hollow space 39, into which a core insert 40 is inserted. In the core insertion element 40, for each injection nozzle 32 of the injection cylinder 30, a separate feed channel 44 is configured, which in the lower section 311 of the housing 31 is in flow connection through a end section 481 with nozzle

20 32 associated injection in each case and in the upper section 312 of the housing 31 is in flow connection through an end section 4 & 2 with an associated opening 37.

Thus, each refrigerant supply line 70, which is connected to a flange plate 73 and which is mounted by means of I: this flange plate 73 in the cylinder housing 31

30, has an associated injection nozzle 32. The refrigerant is supplied individually and one by one through the channels 44 in the core insert 40. without possible assembly errors thanks to the unique associations.

5 Figures 6 to 8 show the most detailed configuration of the core insertion element 40. This consists essentially of a cylindrical body 41, which is inserted with force drag and / or shape into the housing 31, for example by pressure insertion of the core insertion element 40 into the housing 31 or by hot-dipping the housing 31 on

10 core insert element 40. In this case, the body 41 is closed in particular in a pressure-tight manner with respect to the walls of the hollow space 39, so that the channels 44 configured in the core insertion element 40 are separated from each other without leakage. Caps 49 inserted at the end sides in the hollow space 39 tightly close the housing 31, so that on the front sides no refrigerant can escape from the housing either

15 31 And therefore the injection cylinder 30.

The feed channels 44 in the core insertion element 40 are, as shown in particular in Figure 8, perforations 45 and / or grooves 47 milled in the outer circumference 46 of the core insertion element 40, which extend all together in the direction

20 L longitudinal of the injection cylinder 30 and flow into their respective end zones. whenever necessary, through transverse perforations or radial transverse grooves (not shown) in the corresponding end sections 481, 482 in each case. These are in flow connection on one side with the associated injection nozzles 32 and on the other hand with the openings 37 associated with the housing 31.

It is noted that the channels 44 are configured in a distributed manner by the cross-sectional surface of the core insertion element 40, so that a relatively large number of channels 44 can be accommodated in the core insertion element 40. At the same time a globally compact arrangement is obtained, that is to say the core insertion element 40 or its cylindrical body 41 has, despite the large number of channels 44, a diameter only reduced, which has an extremely favorable impact on the housing diameter 3 J. In this way the injection cylinder 30 is configured relatively narrow, so that the cross-sectional flow in the pipe 20 only decreases it so

10 insignificant. However, at the same time each injection nozzle 32 in the injection cylinder is connected with a separate coolant supply line 70, so that the nozzles 32 can be controlled through the regulating element 50 one by one and can be controlled Supply refrigerant individually.

The core insertion element 40 is co-configured with a piece preferably p, Jr, the entire length of the injection cylinder 30. However, it can also be configured divided one or more times in the longitudinal direction L of the injection cylinder 30, to simplify the performance of the perforations 45 and grooves 47.

20 The injection cylinder 30, depending on the number of injection nozzles 32, has at least one, but preferably at least two to four receiving surfaces 36 for the first flange plates 73 of the group, J B constructive flange. However, the upper section 312 of the housing 31 can also be configured in a pentagonal or hexagonal manner, so that five or more flange construction groups B can be connected to the cylinder 30 of

injection.

In order to secure the injection cylinder 30 to the pipe 20 a flange joint 34 with a housing 351 is provided, which is fixed through a joint 352 to the pipe 20. As 5 shows Figure 5, the injection cylinder 30 it is inserted with its housing 31 from above in the housing 351, the housing 31 presenting a flange crown 3 J3, which rests inside the housing 351 on a step 353. Between the flange crown 313 and the step 353 is arranged a seal 355. The pressure-tight securing of the housing 31 in the housing 351 is produced by means of screws 354 and clamping bodies 356, which press the crown 313

10 of flange on joint 355 against housing 351. A flange joint 34 of this type corresponds to the detachable union of rotational symmetry components according to European patents EP O 775 863 BI and / or EP I 010931 SI of Mr. Alfred Schlemmenat, whose content is hereby referred to in its entirety.

15 However, in the case of the flange joint 34 it can also be a conventional flange joint or a self-sealing flange closure according to Uhde-Bredtschneider.

As Figure 9 shows, the regulator element 50 has a housing 51, which in a first section 511 directed to the refrigerant connection 52 is essentially cylindrically configured 20, while a second section 512 directed to the flange construction group B it is squarely configured in its cross section, the outer surface 53 of the housing 51 forming in the area of the second section 512 four flat side surfaces 56. These serve as receiving surfaces for the second flange plates 74 of the constructive flange group B. The size of the receiving surfaces 56 and the size of the plates 74

flanges are adjusted to each other so that the latter are supported with their surfaces 78 of

support flat and with its entire surface on the receiving surfaces 56. To secure the flange plates 74 on the receiving surfaces 56 threaded holes 58 are made on the edge sides. that are arranged superimposed on the

5 perforations 77 in the flange plates 74, so that the latter can be firmly atomized with the housing 51 of the regulating element 50.

As Figure 9 further shows, openings 57 are made on the receiving surfaces 56 of the housing 51, through which the refrigerant can flow out of the regulating element 50. The number and arrangement of the openings 57 in one of the receiving surfaces 56 correspond to the number and arrangement of the notches 76 in the flange plate 74 associated in each case and therefore to the number of coolant supply lines 70. which are provided on the flange plate 74. If the latter, in the normal state, rests with its bearing surface 78 on the associated receiving surface 56 of the housing 51. 15 then the openings 57 and notches 76 are located on the flange plate 74 congruently about others, so that the refrigerant can flow without obstacles from the regulator element 50 into the refrigerant supply lines 70. On the receiving surfaces 56 and on the flange plates 74, the same number of openings 57 or notches 76 may be provided in each case. However, as in the case of the cylinder

20 30 injection. a different number of openings 57 or notches 76 can also be provided on the different surfaces.

The openings 57 open inside the housing 51 in an essentially cylindrical hollow space 59. in which a valve arrangement 60 is configured. Is in the

area of the receiving surfaces 56 for flange plates 74 comprises a cylinder 62

regulator, which is mounted by means of a spindle 67 regulator so that it can rotate about the longitudinal axis A of the element: regulator. The regulating spindle 67 is mounted on a bearing sleeve (not described in more detail) with stuffing box package. Excels

5 with one end 68 ¡x> r the end sides of the housing 51 of the regulator element 50 and is attached thereto with an actuator (not shown in more detail), which can be operated mechanically, hydraulically, pneumatically or electrically.

The regulating cylinder 62 has a longitudinal notch: 63 centered, which inside the

10 housing 51 is in flow connection with connection 52 for the supply of refrigerant and which on the perimeter side is provided with radial control openings 64, being provided for each opening 57 and for each injection nozzle 32 in the cylinder 30 of injection, and therefore for each associated coolant supply line 70, a control opening 64.

15 If the regulating cylinder 62 is placed through the regulating spindle 67 at a certain angular position with respect to the housing 51, then the control openings 64 selected in the regulating cylinder 62 are placed in flow connection, through of the openings 57 associated in each case in the housing 51 of the regulating element 50 and through the notches 76 associated with

20 the respective openings 57 in the second flange plate 74 of the flange construction group B. with the associated refrigerant supply lines 70 associated in each case, so that the cooling water can flow from the regulating element 50 through the open refrigerant supply lines 70 into the channels 44 associated in the element 40 of insertion of nucleus in the cylinder 30 of iny (~ tion, to ¡x> der flow from there through the

associated injection nozzles 32 in each case in the pipe 20. In this case, the section

transverse opening of each opening 57 c! n the housing 50 of the regulating element 50 can be modified by the rotational movement of the regulating cylinder 62 around the axis A, so that the associated refrigerant supply line 70 can be released in each case and

5 Coolant flow can be regulated. Preferably the control openings 64 are configured at least by notch-shaped sections. However, they can also be set round or oval.

Depending on the number of injection nozzles 32. the regulator element 50 has at least

10 one, but preferably at least two to four receiving surfaces 56 for the second flange plates 74 of the constructive flange group B. However, the second section 512 of the can 51 can also be configured in a pentagonal or hexagonal manner, in order to connect five or more constructive flange groups B to the regulating element 50.

In addition to the regulating cylinder 62, the valve arrangement 60 has a spherical valve 80 in the area of the first housing section 511. With this, the flow of refrigerant from connection 52 to the housing 51 can be completely cut off if necessary. The ball valve 80 is preferably disposed between the regulating cylinder 62 and the connection 52

20 for the refrigerant supply. In this case, a choke 90 can also be provided, which regulates the pressure of the refrigerant flowing from the connection 52 into the regulating element 50, in order to be able to dominate, for example, higher differential pressures.

With differential injection 10 according to the invention differential pressures can be regulated

between the cooling water and the hot steam with the finest spraying of the cooling water, taking place an immediate and complete mixing of the cooling medium with the steam flow. Depending on the temperature of the hot steam flowing in the pipe 20. the regulating spindle 67 is pivoted through the drive not shown inside the housing 51, dc 5 so that a tangential movement of the openings 64 of control. Correspondingly to this movement are released: control cross sections different from the control openings 64 against the openings 57 in the housing 51 and the notches 76 in the second flange plates 74 of the constructive groups B, whereby the coolant water can flow into the supply lines 70: coolant supply open in each case already

10 through the first flange plates 73 to the inside of the injection cylinder 30.

The invention is not limited to one of the embodiments described above, but can be modified in multiple ways. It is noted that in an injection cooler 10 for cooling hot steam conducted in a pipe 20, with an injection cylinder 30 arranged at least 15 by sections in the pipe 20, which is provided with several injection nozzles 32, with an element 50 regulator, which can be connected with a connection 52 to a refrigerant supply, a valve arrangement 60 being provided in the regulator element 50, with which the refrigeration supply can be regulated; run into the injection nozzles 32 in the cylinder 30 of injection, and with coolant supply lines 70, which are provided between the injection cylinder 30 and the regulator element 50, a separate coolant supply line 70 being provided for each injection nozzle 32, it is provided that the ends 71 of the coolant supply lines 70 associated with the injection cylinder 30 are fixed to a first common flange plate 73, which p it can be fixed to a receiving surface 36 in the injection cylinder 30, and that the ends 72 of the ducts 70 of

coolant supply associated with the regulator element 50 is fixed to a second common flange plate 74, which can be fixed to a receiving surface 56 of the regulator element 50, by connecting the coolant supply lines 70 and the flange plates 73, 74 a constructive group B, which can be measured between the injection cooler 30 and the

5 element 50 regulator. The injection cylinder 30 has a housing 31, in which a core insertion element 40 is provided, a separate feed channel 44 being configured in connection in the core insertion element 40 for each injection nozzle 32 of flow with the injection nozzle 32, associated ion in each case.

10 All the features and advantages that emerge from the claims, the description and

of the drawing, including constructive details, procedure provisions, may be essential for the. invention both in different combinations.

15 List of reference symbols

A longitudinal axis (regulator element)

B building group 20 space and stages of themselves as in the most

L

Longitudinal direction Longitudinal axis (injection cylinder)

S thyme

10 injection refrigerator

20 pipe

30 injection cylinder

31 housing

311 first section

312 second section

313 flange crown

32 injection nozzles

33 external surface

34 flange joint

351 accommodation

352 splice

top

regulatory element

Case

first section

second section

Connection

external surface

receiving surface

opening

threaded holes

valve arrangement

regulator cylinder

353 step 63 longitudinal notch 46 external circumference 78 support surfaces

354

thyme 64 control opening

355

meeting 67 spindle regulator

356

tightening body 68 extreme

36 37

receiving surface opening 70 cooling duct 71 end from feeding from

38

threaded holes 72 extreme

39

hollow space 73 first flange plate

40

core insertion element 74 second flange plate

41

cylindrical body 75 notch

44

feed channel 76 notch

Four. Five

drilling 77 drilling

47

groove 80 Ball Valve

48 \

end section 90 throttle

482

end section

Claims (13)

one.

Injection cooler (10) for cooling hot steam conducted in a pipe (20),

5

a) with an injection cylinder (30) arranged at least by sections in the pipe (20),

which is provided with several injection nozzles (32),

b) with

a regulator element (50), which can be connected with a connection (52) to a

refrigerant supply,

10

e) a valve arrangement (60) being provided in the regulating element (50), with the

that the refrigerant feed to the injection nozzles (32) in the

injection cylinder (30), and

fifteen

d) with coolant supply lines (70), which are provided between the

injection cylinder (30) and the regulated element (50) r,

and)

being provided for every nozzle (32) from injection a conduit (70) from

separate refrigerant feed,

twenty

characterized

F)

why the extremes (71) of the refrigerant supply lines (70)

associated to the injection cylinder (30) are fixed to a first flange plate (73)

common, which can be fixed

to a sup, receiving surface (36) in the cylinder (30) of

injection, and

g) because

the ends (72) of the ducts (70) of refrigerant feed

5

associated to the regulator element (50) are fixed to a second flange plate (74)

common, which can be fixed to a surface,: ie (56) receiving of) regulator element (50).

2.

Injection cooler according to claim), characterized in that the ducts

(70) of the coolant and the flange plates (73, 74) form a group (B)

10

constructive.

3.

Injection cooler according to claim 1 or 2, characterized in that the cylinder

(30) injection has a housing (3 1), the surface (36) of

reception for the first flange plate (73) on an external surface (33) of the housing

fifteen

(31 l.

Four.

Injection cooler according to claim 3, characterized in that the housing (31)

of the injection cylinder (JO) is configured

in the zone dc the surface (36) of

reception for the first plate (73) dE: angular flange in its cross section.

twenty

5.

Refrigerator injection according to claim 3 or 4, characterized in that in the

housing (3 1) a core insertion element (40) is provided, being configured

in the core insertion element (40) for each injection eyelet (32) a channel

(44) separate power, which is in flow connection

with the eyelet (32) of

associated injection in each case.

6.

Injection cooler according to claim S, characterized in that the channels

(44) of feeding are perforations (45) made in the insertion element (40)

5

of core and / or grooves (47) made in the outer circumference (46) of the element (40)

of core insertion.

7.

Injection cooler according to claim 5 6 6, characterized in that each channel

(44) of feeding in the core insertion element (40) is in flow connection

10

through an associated opening (37) in the housing (3 1) and through a notch (75)

associated to the respective opening (37) in the first flange plate (73) with a conduit

(70) of the associated refrigerant imentation.

8.

Injection cooler according to one of claims 5 to 7, characterized in that

fifteen

the core insertion element (40) is inserted with force and / or shape drag

in the housing (31).

9.

Injection cooler according to one of claims 5 to 8, characterized in that

the core insertion element (40) is divided in the longitudinal direction (L) of the

twenty

injection cylinder (30).

10.

Injection cooler according to one of claims 1 to 9, characterized in that

the injection cylinder (30) can aSf: be secured by means of a flange joint (34) to the

pipe (20).

eleven.

Injection cooler according to one of claims I to 10, characterized in that

the regulator element (50) has a housing (S 1), the surface being configured

(56) for receiving the second flange plate (74) on an external surface (53) of the

5

housing (S 1).

12.

Injection cooler according to claim 11, characterized in that the housing

(SI) of the regulator element (SO) is configured in the surface area (56) of

reception

for the second plate (74) from flange from way angular in its section

10

cross.

\3.

Injection cooler according the claim 1I OR 12, characterized because the

Valve arrangement (60) features a regulator cylinder (62), which is arranged in the

area of the receiving surface (56) in the housing (S 1), the cylinder (62) being provided

fifteen

regulator of a longitudinal notch (63) and radial control openings (64), which

is it so

in flow connection with the connection (52) for the refrigerant supply,

being provided for each injection nozzle (32) in the injection cylinder (30) and its

duct (70) dc refrigerant feed associated with a control opening (64).

twenty

14. Injection cooler according to claim 13, characterized in that each opening

(64) control in the cylinder (62) regulator is in flow connection through a

associated opening (57) in the housing (51) of the regulator element (50) and through a

notch (76) associated with the respective opening (57) in the second flange plate (74)

with the refrigerant supply line (70) associated with the respective nozzle

(32) injection. 15. Injection cooler according to claim 13 or 14, characterized in that the regulating cylinder (62) is mounted so that it can rotate about a longitudinal axis (A) of the housing (51), the opening cross-section of each opening (57) in the housing (51) of the regulator element (50) by a rotating movement of the cylinder (62) n: gulator.