Distributor for a heat exchanger with a corrosion-resistant lining
(57) Abstract:The dispenser is designed for heat exchangers with high performance anti-corrosion cladding. The tube plate is provided with a ledge formed by deposition of a welded material and intended for the education of the connection cylinder of the distributor. The latter is equipped with a ring of corrosion-resistant material having essentially rounded radius L-shaped cross-section, tightly coupled with the aforementioned connection plate, its projection and its casing and connecting the radius of the corrosion-resistant cladding tube plate and cylinder. The resistant material is represented by titanium. The invention provides continuity anticorrosive cladding with a minimum of stress concentration and minimal use of corrosion-resistant material. 1 S. and 3 C.p. f-crystals, 3 ill. The present invention relates to a new design of the distributor for a heat exchanger with high-performance corrosion-resistant cladding (e.g., titanium), in which, starting from a flat tube plates, the continuity of the corrosion-resistant coating is achieved within the connection between the tube plate and the cylinder will distribute the material, this maximizes the reliability of connection between the tube plate and the cylinder valve and significantly reduces the cost of the work performed.Currently known and widely used different types of dispenser for heat exchangers with high performance anti-corrosion coating, for example of titanium.One of the known types of valve, a cylindrical tubular plate U-shaped section in which a flat bottom and cylindrical wall connected by a radius to eliminate the possibility of stress concentration, and hence the probable points of discontinuity. However, it should be borne in mind that such tubular plate has the disadvantage that in the process of formation of the coating method of the explosion, and this operation is very important when applying a titanium coating, the side wall of the said grating will reflect the blast wave with the ultimate formation of numerous defects, the end result of which will be suitable for practical use rather large peripheral part of the tube plate. The consequence will be the need to use the tube plate of large diameter, and slok resolved in another type of dispenser for heat exchangers with a corrosion-resistant lining, in which use completely flat tube plate with the annular groove, in which is mounted element for welding to the cylinder of the distributor and to take additional element of corrosion resistant material.Nevertheless, this latter valve also has a drawback in that it contributes to the intensification and concentration of stresses at the point of connection between the tube plate and the cylinder only due to the mentioned annular groove, and the related reduction of the cross section of the tube plate, which has as its end result a decrease in the reliability and the need to use more high-performance corrosion-resistant material with the same dimensions of the dispenser to fill the mentioned annular groove, which naturally leads to an increase in the cost of manufacture of the distributor.The present invention is to eliminate the above-noted disadvantages by creating a distributor for a heat exchanger with high performance anti-corrosion coating, for example of titanium, in which the continuity of the corrosion-resistant cladding between the flat tubes is ispolzovaniem corrosion-resistant material.The objective of the invention is achieved mainly by eliminating pipe plate annular groove, and is required for the formation of a welded joint between the tube plate and the cylinder valve protrusion formed on the peripheral part of the tube plate in the sediments it welded material; in addition, the continuity of the corrosion-resistant lining in the point of connection is achieved using a ring of corrosion-resistant material with a cross section that resembles essentially the form of a rounded radius L, which is tightly bonded to the connection point and the internal surfaces in the immediate vicinity of this point of connection.Therefore, the distributor with a corrosion-resistant lining for heat exchanger containing the tube plate and the cylinder of the distributor, both of these elements have a corrosion-resistant lining of suitable material formed by the method of the explosion, and the corrosion-resistant material removed from the peripheral parts where the connection pipe plate with cylinder valve, differs according to the present invention that is free from corrosion-resistant material (lining) of the peripheral part of the tube is imago material with subsequent formation of a welded joint between the tube plate and the cylinder of the distributor, and that ring of corrosion-resistant material having essentially rounded radius L - shaped cross-section, is strongly linked with this connection and the inner surfaces of the distributor, which are in the immediate vicinity of the mentioned compounds, as well as the fact that guaranteed the connection to the radius of the corrosion-resistant cladding tube plate with corrosion-resistant cladding cylinder distributor.To facilitate installation of the ring of corrosion-resistant material, the cross section of which resembles the creature rounded on a radius of the letter L on the cylinder valve, then one further characteristic of the present invention mentioned ring has a smaller diameter than the diameter of the cylinder, and bartekova ring of corrosion-resistant material is installed between the ring having essentially a cross section in the form of a rounded radius L and corrosion-resistant cladding cylinder distributor.In accordance with one modification of the present invention a ring of corrosion-resistant material with a cross-section in the form of a rounded radius L consists of many sectors, sarandiarse elements of corrosion-resistant material, welded to the underlying parts. And, finally, in a preferred variant of the invention, the corrosion-resistant material is titanium.Below the invention will be described in detail with reference to the accompanying description of the drawings, which are only illustrative of the preferred variants of the invention, but in no case do not limit its scope, it should be borne in mind that the invention admits of numerous technical, structural or technological changes and modifications without departing from the essence and scope of the present invention.Brief description of drawings
Fig. 1 is a longitudinal section through the dispenser of the heat exchanger according to the present invention.Fig. 2 is a longitudinal section through one shown in Fig.1 parts on an enlarged scale.Fig. 3 is a perspective view in an enlarged scale, illustrating a modified version of the ring with a rounded radius L - shaped cross section according to the invention.Now refer to the drawings, which shows that the distributor heat exchanger consists of a cylinder 1, a closed domed end 2 and is covered with two corrosion-resistant titanium about loscoe tube plate 5, the inner surface is also coated with anti-rust titanium clad 6 formed on the same technology metallization using explosion; on this plate there are plenty of tubes 7. The tube plate 5 and the cylinder 1 are welded butt joint with welded connection 8 at their respective peripheral parts 9 and 10, which had previously removed the titanium cladding 6 and 3, respectively. On the peripheral portion 9 of the tube plate 5 is formed a protrusion 11, which is connected with the tube plate (see Fig. 2), and the formation of the protrusion is implemented by deposition here welded material, and the protrusion in this case acts as an edge for these connections 8. A corresponding protrusion 12 is formed also in the peripheral part 10 of the cylinder 1 by deposition here welded material. Then use titanium ring 13 with a rounded radius L-shaped cross section, which is welded with their ends to the underlying element, perform the connection between the titanium cladding 3 of the cylinder 1 and titanium clad pipe 6 of the plate 5.To facilitate installation of the ring 13 in the cylinder 1, the diameter of the said ring is made slightly smaller than the diameter of the sa is blizovski 3 of the cylinder 1, to L-ring 13 is appropriately welded to the titanium cladding pipe 6 of the plate 5 and to the titanium ring 14. Working with titanium specialists are well aware that between the deposition of the welded material and the titanium cladding must be installed inert material 15 and 16, respectively, for example silver, aluminum, etc.In accordance with the shown in Fig. 3 a modification of the invention titanium ring 13 is essentially rounded radius L-shaped section is made in the form of three sectors 17, 18 and 19, respectively, which after installation inside the cylinder 1 are welded together, with appropriate weld 20 is protected by kolachalama elements 21. 1. Dispenser with corrosion-resistant lining for heat exchanger containing the tube plate and the cylinder of the distributor, which is also lined with corrosion-resistant material by a method of formation of the coating by the explosion, with anti-corrosion material removed from the peripheral parts, which made the connection pipe plate cylinder, characterized in that it is equipped with a ring of corrosion-resistant material, and free from corrosion allizon by deposition of a welded material and is intended for the formation of a welded joint between the tube plate and the cylinder, moreover, the above-mentioned ring of corrosion-resistant material has an essentially rounded radius L-shaped cross-section, tightly coupled with the aforementioned connection plate, its projection and its casing and connects the radius corrosion cladding tube plate with corrosion-resistant lining of the cylinder.2. The distributor under item 1, characterized in that it is equipped butikowym ring of corrosion-resistant material, installed between the corrosion-resistant cladding of the cylinder and the ring, essentially, a rounded radius L-shaped cross-section, and the diameter of the ring with the said cross-section less than the diameter of the cylinder.3. The distributor under item 1, characterized in that the ring of corrosion-resistant material with essentially rounded radius L-shaped cross-section consists of many sectors, welded together after they are installed in the cylinder of the distributor, while the weld is protected by kolachalama elements of corrosion-resistant material is welded to the underlying elements.4. The distributor under item 1, wherein the resistant material is represented by titanium.
FIELD: mechanical engineering; heat exchanger equipment.
SUBSTANCE: invention relates to multistage heat exchange device containing primary and secondary circuits to provide heat exchange in which heat carrier passes in opposite directions. According to invention, primary circuit has at least two points of supply of heat carrier displaced relative to each other in direction of flow. Said device contains also system of valves interacting with temperature sensors and regulating heat carrier flow through primary circuit. Valve gear for each heat carrier supply point has separate valve.
EFFECT: provision of stable control of temperature at output of secondary circuit.
5 cl, 3 dwg
SUBSTANCE: invention relates to heat exchange units and may be used in heat-exchangers with primary and secondary circuits containing valve for coolant flow control. For this purpose, the heat exchanger consisting of housing with primary circuit between inlet connection and return pipe connection, and the secondary circuit between feed line connection and drain connection, includes valve for coolant flow control through the primary circuit and actuator with the expanding element being affected by the secondary circuit temperature. The valve and expanding element are located from the opposite sides of heat transfer surface, wherethrough the heat from the primary side is transferred to the secondary side. So, the heat-exchanger is represented with plate heat-exchanger. If temperature in the secondary circuit is changed, the expanding element is extended or compressed. The expanding element is connected with the valve which controls coolant flow rate in the primary circuit.
EFFECT: development of compact heat exchanger.
9 cl, 2 dwg
SUBSTANCE: invention relates to the field of heat engineering, namely, to devices for heat recovery. Device for heat recovery contains a heat exchanger (3) located in the annular space (4) representing a part of the exhaust pipe (2) branching, for example, from a gas turbine or a diesel engine. Bypass pipe (6) for exhaust passes through the annular space (4), and distribution of the exhaust flow through the heat exchanger (3) and the bypass pipe (6) is regulated by the control valve (7). The control valve (7) is a butterfly valve (7) which is located in the exhaust pipe (2), adjacent to the heat exchanger (3), at that the said butterfly valve (7) has a fixed part (8) and the rotary part (9) equipped with openings (10, 12, 11, 13) closed or combined with each other. And both the fixed part (8) and the rotary part (9) have two oppositely directed conical parts (8a, 8b; 9a, 9b).
EFFECT: creation of a simple and inexpensive in manufacture device for heat recovery, weight reduction and simplification of regulation.
9 cl, 5 dwg
FIELD: power engineering.
SUBSTANCE: invention relates to a valve unit (1), comprising an inlet hole, a distributor and an outlet part having at least two outlet holes. The distributor comprises an inlet part (5), communicating with the specified inlet hole, and is made as capable of distributing fluid medium received from this inle thole, between at least two parallel flows of a heat exchanger (3). The valve unit (1) also comprises the first valve unit and the second valve unit installed as capable of displacement relative to each other so that mutual position of these valve elements determines the fluid medium flow passing from the inlet hole to each outlet hole of the outlet part. Besides, the valve unit (1) comprises a collector (2) forming an integral part of the valve unit (1). This collector (2) is made as capable of forming a zone of coupling with a heat exchanger (3), having at least two channels, at the same time this collector provides for such liquid communication, at which every outlet hole (7, 9) communicates with the channel of the heat exchanger (3), connected to the collector (2). The collector comprises at least one separating element that separates at least two sections of the collector, besides, each of these sections communicates with the distributor and the specified zone of coupling with the heat exchanger.
EFFECT: using the invention will make it possible to improve distribution of a coolant between heat exchanger channels.
13 cl, 11 dwg
SUBSTANCE: recuperator includes a heated gas channel; an inlet pipeline; an outlet pipeline; as well as a once-through heating surface located in the heated gas channel and formed with a variety of the first single-row tube-header assemblies and a variety of the second single-row tube-header assemblies. Each of the variety of the first single-row tube-header assemblies including a variety of the first generator heat exchange tubes is parallel connected for passage of through fluid medium flow; as well as it includes an inlet header connected to the inlet pipeline. Each of the variety of the second single-row tube-header assemblies including the variety of the second heat exchange tubes is parallel connected for passage of through fluid medium flow entering from the corresponding first heat exchange tubes; as well as it includes an outlet header connected to the outlet pipeline. Each of the inlet headers is connected to the inlet pipeline via at least one corresponding tube of the variety of the first connecting tubes, and each of the outlet headers is connected to the outlet pipeline at least via one corresponding tube of the variety of the second connecting tubes.
EFFECT: quick heating and cooling and increase in the service life.
22 cl, 7 dwg
SUBSTANCE: valve assembly includes a valve that controls heat carrier flow rate in a heat exchange unit, which has primary circuit and secondary circuit, and a valve control device having a thermostatic element that is subject to influence of temperature in secondary circuit and that can be subject to a temperature and/or pressure variation device. A physical value obtained from valve (2) or heat exchange unit (22) has effect on the above device (14. 30) of temperature and/or pressure variation. Heat exchange unit is made in the form of water heater (22) having primary supply pipeline (25) and primary discharge pipeline (26) in primary circuit (23), as well as secondary supply pipeline (27) and secondary discharge pipeline (28) in secondary circuit (24). At that, water having increased temperature can be taken through secondary discharge pipeline (28). Temperature of primary supply pipeline (25) acts on device (14, 30) of temperature and/or pressure variation.
EFFECT: providing quick control of a valve at the appropriate control characteristic.
11 cl, 7 dwg
FIELD: power industry.
SUBSTANCE: heat exchanger reactor includes a shell (1) in the form of a flattened cone with bottoms (2) and (3), heat carrier input and output pipes (4) and (5) for the tube space, and heat carrier input and output pipes (6) and (7) for the shell space. One bottom, namely bottom (2), features a concavity (8) (if seen from below the bottom) in the centre. The shell (1) features a heat effect compensator (9). A thin-wall hollow cone (10) for flow distribution through small (11) and large (12) orifices is mounted in one bottom, namely bottom (3).
EFFECT: enhanced efficiency of heat exchanger due to even distribution of flow speed through the whole volume, and reduced dimensions.
6 cl, 3 dwg
FIELD: engines and pumps.
SUBSTANCE: method of the engine (10) operation is that the cooling of the intake air in the charge air cooler (80) is carried out and control the vibratory device (92) operation of the charge air cooler, depending to the condensate formation conditions in the charge air cooler (80). Adjust the valve position, located at the intake of the charge air cooler (80), based on the condensate formation conditions and the state of the vibratory device (92). Engine operation method version and engine system are disclosed.
EFFECT: reduction of condensate accumulation on the charge air cooler surface and prevention of the condensate entry into the air intake flow.
19 cl, 5 dwg
FIELD: machine engineering.
SUBSTANCE: invention relates to the heat exchanger (1), containing a set of inlets (30-36), each one of which is connected to at least one coherent pipe (20) of the heat exchanger (1), so that at least one flow (S) of the first medium, as well as one flow (S') of the second medium can be guided through at least one coherent inlet (30, 32, 33, 35, 36) to a respective coherent at least one pipe (20), while the heat exchanger (1) has a case (10), which surrounds the space (11) of the case in which the specified pipes (20) are located, so that, in particular, the flow (S'") of the medium passing through the space (11) of the case enters into indirect heat exchange with the medium flow (S, S') passing in the corresponding pipe (20), and the specified pipes (20) are wound around the central pipe (12) of the heat exchanger (1). According to the invention it is provided that each of the pipes (20) agreed with the appropriate inlet (30-36) sets the heating surface and the heat exchanger (1) has at least one switching means (100), which is intended to switch back and forth at least one of the inlets (30) between at least one first operating condition and one second operating condition, so that the flow (S) of the first medium can be directed in the first operating condition and the flow (S') of the second medium -in the second operating condition through at least one inlet (30) to at least one agreed pipe (20), with providing the large heating surface for the flow (S) of the first medium in the first operating condition and respectively, the smaller heating surface for the flow of the second medium and with providing the large heating surface for the flow (S') of the second medium in the second operating condition, and respectively, the smaller heating surface for the flow (S) of the first medium.
EFFECT: increase the efficiency.
11 cl, 2 dwg
FIELD: heat-exchange apparatus; liquid-to-liquid heat exchangers.
SUBSTANCE: collector chamber of shell-and-tube heat exchanger adjoining the tube sheet of tube bank includes partitions dividing it into supply and discharge compartments; they have U-shaped profile with strip located between its runs; it is made from elastic material; one end of strip is secured on tube sheet and second end is bent at 180 deg. on side of supply compartment.
EFFECT: enhanced operational reliability.