Working vehicle (versions)
FIELD: heating system.
SUBSTANCE: working vehicle has a base, a support hinged to the base for rotation relative to the base about the first rotation axis between the first reference position and the second reference position, and a heat exchanger. The heat exchanger is hinged to the support for rotation relative to the support about the second rotation axis between the first position of the heat exchanger and the second position of the heat exchanger.
EFFECT: increased efficiency of the heat exchanger.
20 cl, 15 dwg
SUBSTANCE: invention refers to soot blowing device for cleaning of boilers in operation, and namely for cleaning of heat transfer devices located in boilers by means of gaseous and/or liquid cleaning medium, such as steam and/or water stream. Soot blowing device includes blowing pipe moved in axial direction, which is equipped on its working end with side outlet nozzles. In order to provide safe connection of pipeline to the blowing pipe at lower costs, supply pipeline can consist at least of two practically straight-line stiff sections of pipeline, which are connected to each other through hinged connection of the pipeline. The pipeline section that forms the pipeline end is connected through hinged connection of the pipeline to inlet end of blowing pipe, while the pipeline section that forms the pipeline beginning is connected through the hinged connection of pipeline to connecting branch pipe of the stationary system of cleaning medium pipelines. Rotation axes of all hinged connections of the pipeline are located parallel to each other and are almost vertical.
EFFECT: cleaning efficiency improvement.
12 cl, 4 dwg
FIELD: power industry.
SUBSTANCE: flushing method of condensers with short-time return water flow involves an operating condenser filled with water, a supply water conduit having a shutoff gate valve and an operating forcing pump, an outlet water conduit having a shutoff gate valve, and an upper drain water chamber having a manhole hatch. Return water flow in the condenser is formed at performance of the following operations: shutoff gate valve is closed on an outlet water conduit, and after it is closed, the forcing pump on the supply water conduit is switched off. After the pump is stopped, the manhole hatch is opened on upper drain water chamber, and after the air suction through it to the condenser is completed, the manhole hatch is closed. Then, normal operation of the condenser and power of the turbine generator are restored. Such a method can be used at reduced power of the turbine generator for operation without any condenser.
EFFECT: at creation of short-time return water flow, soft and muddy deposits are washed off tubes of condensers; as a result, vacuum is improved in it and power of turbine generator increases.
FIELD: power industry.
SUBSTANCE: control method of operation of cleaning devices of the boiler furnace heating surfaces involves electromagnetic emission scanning of walls and water wall tubes of the furnace, determination of critical slagging intensity of its heating surfaces and activation and deactivation of cleaning devices. It is proposed to scan the furnace water walls through opposite lying hatches by means of electromagnetic emission with a directivity pattern in the form of a narrow beam; scanning of walls is performed by linear movement of the narrow beam, in horizontal plane and across water wall tubes; initial scanning of walls is performed prior to the beginning of the furnace operation; a variable component determined with a regular structure of the wall surface is separated from the accepted reflected electromagnetic signal and transmitted to the filter-detector that is tuned to parameters of the signal; further scanning operations of the same walls are performed during the furnace operation; those reflected signals are received and supplied to the filter-detector; slagging intensity degree of each section of the heating surface is determined as per the value of electromagnetic signal from the filter-detector outlet.
EFFECT: method improves accuracy and reliability of detection of critically slagged surfaces.
SUBSTANCE: heat exchange system with a heat exchanger comprises inlet and outlet surfaces. To exchange heat between a transportation liquid medium and coolant flowing through the heat exchanger in the working condition, the transportation liquid medium supply is provided through a supply surface of the heat exchange system and the inlet surface to the heat exchanger, bringing in contact with the heat exchanger and again discharge via an outlet surface from the heat exchanger. According to the invention, the heat exchange system for removal of dirt comprises an automatic cleaning system.
EFFECT: automatic system of heat exchanger filter treatment in process of operation, elimination of heat exchange system outage.
12 cl, 6 dwg
SUBSTANCE: heat-exchange plates form the first gaps between plates for the first medium and the second gaps between plates for the second medium. Casing envelopes plate pack and contains round cylindrical outer cover and two end plate elements. Outer cover determines central axis (x) passing through two end plate elements. The first medium flows via the first inlet hole and the first outlet hole to plate-type heat exchanger and from it and flow through the appropriate end plate element. The second medium flows via the second inlet hole and the second outlet hole to plate-type heat exchanger and from it. Plate pack has the space which is located inside the first inlet hole and the first outlet hole. Devices for creating, for each of the first gaps between plates, of inlet hole for the first medium from space to the first gaps between plates and outlet hole for the first medium from the first gaps between plates to the space.
EFFECT: improved design of heat exchanger having larger dimensions and simpler cleaning and maintenance.
40 cl, 11 dwg
FIELD: heating, fuels.
SUBSTANCE: invention relates to heat engineering, particularly, to heating various-purpose buildings, namely, to the designs of water-heating systems and those designed to stabilise and recovery of heat exchange. The proposed water-heating system comprises hear lines that deliver heat carrier from direct main pipeline to riser pipes arranged in party walls and from floor party walls to the inlet of every heat exchanger mounted at the centre of window stool zone. The outlet of each heat exchanger is connected to the inlet of the next floor heat exchanger. The last floor heat exchanger outlet communicates with the pipe that deliver heat carrier to return pipe of the main pipeline that features top arrangement and shut-off valves. Every riser pipe and heat exchanger allows cleaning them of deposits and corrosion. To this end, the riser pipes mounted in party walls are connected by flexible hoses at their centres and jointed between vertical and horizontal lines. Note that divided heat exchangers feature plugged holes aligned with section channels at the top of two-channel sections or on top of the upper header. The invention covers also the versions of the heating system, versions of the method of cleaning of deposits and corrosion, heat exchanger versions and indoor temperature control method.
EFFECT: longer life of heating system, easier servicing, improved indoor temperature control.
20 cl, 7 ex, 27 dwg
FIELD: heating engineering.
SUBSTANCE: invention concerns deposits formed on heat exchange surfaces in heating and/or hot water-supply systems. Treatment and neutralization plant comprises heating unit, water treatment unit provided with water-swirling device and impurity-precipitation device, and deposit neutralization unit constructed in the form of chemical reagent dispenser mounted upstream of heating unit. Water-swirling device is designed as centrifugal separator provided with vent. Impurity-precipitation device is designed as solid fraction withdrawal device further equipped with heat exchanger to heat water used to additionally feeding the system. Plant can optionally be provided with vibroacoustic device affecting centrifugal separator and/or solid fraction withdrawal device.
EFFECT: enhanced efficiency of treatment and neutralization of deposits under non-stop conditions with simultaneous degassing and purification of liquid contained in the system, reduced heat consumption, and prolonged service time of all structural system elements.
2 cl, 1 dwg
FIELD: equipment for cleaning the heating surfaces of the heat exchange equipment, in particular, in low-pressure steam and hot-water boilers, turbine condensers, fodder steamers, etc from salt deposits (scale) on the working heating surfaces.
SUBSTANCE: the device has a pulse oscillator and a mechanical vibration radiator, the radiator is made in the form of a flat inductor with a winding connected to the pulse oscillator, and the outer metal surface of the heat exchange equipment engaged with the inductor is made of diamagnetic material. Such a construction makes it possible to use the energy of the pulse electromagnetic field produced by the flat inductor for water treatment.
EFFECT: enhanced efficiency of prevention of scale formation on the working heating surfaces.
SUBSTANCE: heat exchanger device, particularly for vehicle heating systems, includes bowl-shaped body (12) of heat exchanger with external wall (18, 20) and internal wall (22, 24), positioned along longitudinal axis (L), so that external (18, 20) and internal (22, 24) walls form space for heat carrier medium flow; external wall (18, 20) features at least one choke (50, 52) for heat carrier medium flow; heat exchanger body (12) carries one choke (30) for spent gas flow, open at the side of internal wall (22, 24) of internal space (26) in the heat exchanger body (12); heat exchanger body (12) includes external body part (14) with external surrounding wall (18) and external wall-bottom (20) and internal body part (16) in internal surrounding wall (22) and internal wall-bottom (24); axial end zone (44) of external surrounding wall (18) in the external body part (14), positioned at some distance from external wall-bottom, features at least one choke (50, 52) for heat carrier medium flow.
EFFECT: improved design.
16 cl, 4 dwg
SUBSTANCE: heat exchanger comprises a housing provided with fittings for input and output of the coolant, the lids with fittings for input and output of the heat exchanging medium, and the bundle of heat exchanging tubes fixed in the holes of the tube grids, consisting of inner and the subsequent perforated plates with sealing material between them. Each tube grid is provided with the additional perforated plate. The housing is made with the inner recesses at the ends. The inner and the subsequent plates of the tube grids are clamped with the lids in the recesses of the housing. The heat exchanging tubes are equipped with clip bands.
EFFECT: simplification of manufacturing, improvement of reliability of the heat exchanger.
6 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: unit is placed in a leakproof housing composed of two parts. The first (upper) part is a cover in the form of a hollow metal cylinder with semispherical end wall on the closed side and fitted by a flange - on the open side. The second (lower) part is a base on which all components of an electronic device are fixed. The electronic components are arranged inside the housing as follows: a group cooler on which the most heat releasing components are installed, is mounted on the base. Posts providing for fastening of a horizontal perforated shield above the said components are installed on the base, the remaining components with less heat release - printed circuit boards with radio elements - are mounted on the shield. The inlet hole provided in the cover is aimed at the supply of dielectric cooling liquid inside the housing, the liquid passes inside the housing and washes all electronic components cooling them, then it enters the channels present in the group cooler body providing for additional withdrawal of heat, afterwards it is drained through the outlet hole provided in the base. Internal channels increase the efficiency of heat transfer from the components installed on the group cooler. The cooling liquid is supplied to the housing under high pressure by means of an external pump and can be included in the common circulating flow of cooling agent of the whole spacecraft.
EFFECT: improved efficiency of cooling the devices comprising radio electronic components and power modules with different heat release levels, including those intended to be used in the state of weightlessness.
4 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: dispensing chamber (5) is limited from outside by body (3), bottom (2) and grate (6) and interconnects central supply pipe (8) and side discharge channel (1) through a clearance between bottom (2) and end-face part of central supply pipe (8). Side discharge channel (1) is shaped by body (3) and central supply pipe (8). Grate (6) is installed in side discharge channel (1), while its porosity coefficient corresponds to a range from 0.3 to 0.8. The ratio of dimensions of chamber (5) corresponds to the conditions taking into account the interrelations, first of all, of a height of dispensing chamber (5) and inner diameter of central supply pipe (8); secondly, of a height of inlet into dispensing chamber (5) and inner diameter of central supply pipe (8); thirdly, of a height of dispensing chamber (5), a height of entrance into it and inner diameter of central supply pipe (8); fourthly, of a height of dispensing (5) and a height of entrance into it, radius of the lower part of body (3), inner and outer radii of central supply pipe (8); fifthly, of a distance from bottom (2) to step (7) at body (3) accordingly with the height of dispensing chamber (5) and with a radius of the lower part of body (3), a height of entrance into dispensing chamber (5), inner radius of central supply pipe (8); sixthly, of a radius of the lower part of body (3), inner radius of central supply pipe (8) and a height of entrance into dispensing chamber (5). The dimensions of a flowpath of dispensing chamber (5) are related with its hydrodynamic characteristics by a relation taking into account the mass flow rate of the working medium through a hole of grate (4), an average mass flow rate of the working medium through it, full pressure loss at grate (4), working medium density, average velocity of the working medium in central supply pipe (8), area of cross-section of a jet of the working medium falling on grate (6) jet of the working medium, a radius of the upper part of body (3), external radius of central supply pipe (8), reference radius of grate (6) and three empiric coefficients.
EFFECT: extending functional capabilities of a device at shaping a hydrodynamic irregularity at the exit of the dispensing chamber and simplifying its design.
5 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: distributing chamber (5) is externally limited by a casing (3), a bottom (2) and a grid (6) and provides for the interconnection of a central supply pipe (8) and a lateral outlet channel (1) via a gap between the bottom (2) and the end face part of the central supply pipe (8). The lateral outlet channel (1) is formed by the casing (3) and the central supply pipe (8). The grid (6) is installed in the lateral outlet channel (1) and its porosity factor falls in the range from 0.3 to 0.8. Ratios of the distributing chamber (5) dimensions correspond to the conditions considering the interrelations of the height of the distributing chamber (5) and the inner diameter of the central supply pipe (8); height of the inlet to the distributing chamber (5) and the inner diameter of the central supply pipe (8); height of the distributing chamber (5), height of the inlet to it and the inner diameter of the central supply pipe (8); height of the distributing chamber (5) and height of the inlet to it, radius of the lower casing (3) part, outer radius of the central supply pipe (8); distance from the bottom (2) to the step (7) on the casing (3) respectively with the height of the distributing chamber (5), and with the radius of the lower casing (3) part and height of the inlet to the distributing chamber (5); radius of the lower casing (3), inner diameter of the central supply pipe (8) and height of the inlet to the distributing chamber (5). Dimensions of the flow passage of the distributing chamber (5) are related with its hydrodynamic characteristics by a ratio considering the mass flow of working medium through the grid (4) hole, average mass flow of working medium through the grid, total pressure loss at the grid (4), density of working medium, average velocity of working medium in the central supply pipe (8), area of the cross-section of the working medium jet falling on the grid (4), radius of the upper casing (3) part, outer radius of the central supply pipe (8), reference radius of the grid (6) and three empirical coefficients.
EFFECT: expanded functionality at forming hydrodynamic irregularity at the distributing chamber outlet and simplified design.
5 cl, 1 dwg
SUBSTANCE: invention relates to the field of heat engineering, namely, to a system of guide discs for a heat exchanger, to a heat exchanger with application of the system of guide discs, to the method to manufacture a heat exchanger, and also to a set for equipment or re-equipment of the heat exchanger. The system of guide discs according to invention has multiple guide discs, which are designed to guide the medium flowing in the crisscross counterflow in the core of the heat exchanger and in the zone of the jacket between the core and the jacket surrounding the core. Each guide disc is made as capable of placement onto the heat exchanger core.
EFFECT: simplified assembly, reduced costs for manufacturing and re-equipment of heat exchanger.
22 cl, 27 dwg
SUBSTANCE: plate-like heat exchanger includes at least one heat exchange plate, and preferably a group of heat exchange plates. At least one of the heat exchange plates includes at least one section having corrugations intended for installation against the corresponding corrugations of the heat exchange plate of the corresponding structure. There are at least corrugations of the first type and at least corrugations of the second type. Location and number of corrugations of the first type and corrugations of the second type is different. Another object of the invention is a heat exchange plate including at least one section having corrugations intended for installation against the corresponding corrugations of the heat exchange plate of the corresponding structure. There are at least corrugations of the first type and at least corrugations of the second type; with that, number of corrugations of the first type and corrugations of the second type is different.
EFFECT: invention allows improving characteristics of a heat exchange plate.
14 cl, 9 dwg
FIELD: machine building.
SUBSTANCE: surface condenser for differential fluidisation of vapour components of mixed flow consists of at least two successively connected heat exchangers jointed to each other without end covers and tube bridges with their tubular grids so, that tubes of each preceding heat exchanger downstream mixed flow are elongated beyond outlet enclosure. Their diametre is less, than diametre of tubes of the next heat exchanger and are inserted inside of them forming a gap to drain condensed component. A cavity and channel for withdrawal of drained component are made in the outlet enclosure of the preceding heat exchanger or in an inlet enclosure of the next heat exchanger.
EFFECT: reduced metal consumption of condenser and reduced hydraulic resistance along circuit of volatile components motion due to connection of heat exchangers.
9 cl, 7 dwg
FIELD: power engineering.
SUBSTANCE: plates are arranged in parallel with the main plane of length and include several plates of heat exchanger and a strengthening plate. Plates of the heat exchanger are arranged next to each other and form a packet of plates with the first plate-to-plate gaps and the second plate-to-plate gaps. Each plate of the heat exchanger has four through holes, which form channels though a packet of plates. The plates of the heat exchanger comprise the extreme plate of the heat exchanger at one side of the packet of plates and the extreme plate of the heat exchanger at the opposite side of the packet of plates. Two of the specified plate-to-plate gaps in the packet of plates form an appropriate extreme plate-to-plate gap at the appropriate side of the packet of plates, which are limited in outside direction of one appropriate extreme plates of the heat exchanger. Strengthening plates are arranged outside one of the first plates of the heat exchanger. Strengthening plates have the main area, which passes in parallel to the plane of length and which comprises a strengthening pattern, which is arranged near two channels and comprises at least one groove passing in direction outside from the heat exchanger plates.
EFFECT: increased strength, simplified manufacturing.
17 cl, 11 dwg
FIELD: power industry.
SUBSTANCE: in manufacturing method of radiator with radiator cover the strong flexible material is applied to upper side of radiator and/or at least to one side of the radiator cover, which faces the radiator, at least in some places by means of bonding or mechanical connection, and strong flexible material forms strong and resistant combination with the surface of the radiator and/or at least with one side of the radiator cover, which faces the radiator; at that, strong flexible material is applied to prior to application of powder coating of radiator and/or cover of the radiator; after powder coating has been applied, radiator together with the radiator cover is heated to hot drying temperature of powder coating; at that, owing to thermal effect the viscosity of strong flexible material changes so that the distance appears between the radiator cover and radiator, which excludes the contact of metals between radiator and at least one cover of the radiator; at that, viscosity of strong flexible material changes within temperature range of 120 to 180°C.
EFFECT: simple and economic manufacture, and eliminating the noise during operation.
4 cl, 3 dwg