RU176367U1 - CASE OF THERMAL SOUND-INSULATING GAS-TURBINE INSTALLATION OF ARCTIC EXECUTION - Google Patents

Abstract

The casing of the heat and sound insulating gas turbine unit of the Arctic design is designed for thermal insulation and noise protection of gas turbine units of gas pumping units and power plants. The casing comprises a frame of a gas turbine installation, a roof and walls with doors rigidly connected to a roof and a frame of a gas turbine installation. The roof and walls are made of three layers and contain external solid steel sheets, internal perforated steel sheets, between which a heat and sound insulating non-combustible material is laid. The walls and the roof are made of power with power elements of a closed section, to which external and internal steel sheets are welded. Doors contain: an outer case and an inner perforated box-type case made of steel sheet, with heat and sound insulating non-combustible material between them and U-shaped supports. The doors of the casing are equipped with a sealing elastic gasket and are locked with the help of a bar lock equipped with an “Anti-panic” opening device from the inside. Between the frame of the gas turbine unit and the walls of the casing, a sealing elastic gasket is laid. At the same time, the door is additionally equipped with a second sealing elastic sealant made of flame-retardant material, the door frame contains a steel profile along the perimeter, the internal cavities of which are filled with heat-insulating non-combustible material, sealed with an elastic sealing gasket and a sealing elastic sealant made of fire-resistant material. The door is made with a light opening in which a two-chamber double-glazed window of triplex is hermetically fixed, sealed on both sides with a sealing elastic profile. The bottom and outer walls of the frame, the inner cavity of the power elements of the walls and the roof are insulated with heat and sound insulating non-combustible material. The casing frame is equipped with at least one built-in electric heater. The thickness of the walls and roof of the casing, heat and sound insulating non-combustible material in the walls and roof is from 100 to 150 mm. The casing is equipped with a protective insulated cabinet for placing the cabinet of measuring instruments for gas turbine installation, installed outside the casing and containing a metal welded casing with outer and inner cases, between which non-combustible heat-insulating material is laid, an electric heater with a temperature regulator and a door / doors sealed / sealed with frost-resistant rubber as well as sealed cable / pipe glands. All welds in the casing are solid. All passages in the casing are sealed. Improved operational characteristics by expanding operating conditions, including for outdoor use at extremely low ambient temperatures, while maintaining high structural strength.

Description

The utility model relates to heat and sound insulating housings, in particular to heat and sound insulating housings of gas turbine units, and can be used for thermal insulation and noise protection of gas turbine units of gas pumping units and power plants operated in the Arctic and the Far North.

Known heat and sound insulating casing (container) of a gas turbine installation according to the patent for invention RU No. 2263807 (publ. 10.11.2005). The casing contains side and upper walls covering the gas turbine installation, while its side walls are rigidly connected to the installation frame and are made power. The walls consist of longitudinal and transverse force elements of a closed section, closed on the outside with a solid steel sheet and on the inside with a perforated sheet, between which heat and sound insulating material is placed in bags made of fiberglass. The connection of the walls with the frame can be welded or detachable. Installation maintenance is carried out through the doors in the casing. One of the drawbacks of the casing is the presence of "thermal bridges" due to the use of power elements, as well as insufficient tightness.

Known sound-absorbing casing of a gas turbine installation according to the patent for the invention RU No. 2241843 (publ. 10.12.2004) or sound-absorbing casing of the gas-turbine installation according to the patent for the invention RU No. 2296235 (publ. 27.03.2007). The casing is a frame-panel construction of a hangar type, consisting of an engine casing and a snail casing. The casing comprises an outer casing and an inner perforated panel, between which sound-absorbing material is placed. Numerous longitudinal and transverse ribs of a box-shaped profile, forming rectangular cells, are placed uniformly on the inner wall of the housing on its surface, a shell with numerous longitudinal and transverse partitions is fixed on the ribs, while sound-absorbing material is placed between the shell and the perforated panel in the cells formed by the partitions. The casing has doors for access to the equipment of the installation, the doors have an elastic gasket to ensure the tightness of the casing to prevent noise from entering through the doors and to prevent air leaks from the cooling system of the gas turbine installation from under the casing. The disadvantage of this design is the high material consumption and the possibility of the formation of "thermal bridges" of great length, which affects the thermal insulation characteristics of the casing. Another disadvantage is that the doors are equipped with a bolt lock, which provides the shutter pressure in only one place, thereby not providing the necessary sealing of the casing. Known for the invention patent RU No. 2283413 (publ. September 10, 2006), a door lock for working rooms of a gas pumping station can provide the required safety standards for independent door opening from the outside and from the inside, which allows you to open the door from the inside in case of an emergency or other situation . However, doors equipped with such a lock may sag under their own weight, thereby damaging the tightness of the casing. Thus, such a casing is not reliable enough.

The indicated drawbacks are deprived of the casing of the heat and sound insulating gas turbine installation manufactured by GC PROMTECH LLC, Perm (Catalog of GC PROMTECH 2016, p. 29, the electronic version is available on the Internet at http://gc-promteh.ru/about/catalogs- and-presentations /, Presentation tab of PROMTECH Group of Companies 2016, last updated on 10/19/2016) also known from utility model patent RU No. 149418 (published on 01/10/2015) and comprising: a frame of a gas turbine installation; power frame mounted on the frame of a gas turbine installation; a roof containing heat and sound insulating panels; walls containing heat and sound insulating panels and doors made identical to heat and sound insulating panels, and the walls are not connected to the power frame and are rigidly connected to the frame and the roof of the casing. The heat and sound insulating panels of the casing and door contain: an outer box-type case made of steel sheet; the inner perforated casing is also box-type, made of steel sheet and serving as the back wall of the heat and sound insulating panel or door; and heat-insulating non-combustible material located between them. The inner perforated casing is made with a width and height smaller than the width and height of the outer casing, and is fastened inside the outer casing with spacers (supports) so that between the side walls of the outer casing and the side walls of the inner perforated casing there is a gap that is used to detachable connection of heat and sound insulating panels to each other and to the frame of the gas turbine installation; Between the panels, between the panels and the frame, a sealing elastic fire-resistant gasket is laid. The supports known from the patent for utility model RU No. 150615 (published February 20, 2015) by Promtekh Group of Companies are located on the inner surface of the outer casing, made in the form of U-shaped brackets having a recess on the ends of the shelves and fixed by welding with the said ends to outer casing. The inner perforated casing is mounted on supports using rivets or self-tapping screws. Such supports can reduce material consumption and improve the insulating properties of the casing by eliminating the "thermal bridges", but they do not provide sufficient strength of the panels and doors, especially in the case of an increase in the thickness of the panels, the thickness of the panels and heat and sound insulating material in such a casing is about 65 mm. Along with these supports, ordinary U-shaped supports are used in the casing, shelves attached to the inner surfaces of the outer casing and the inner perforated casing with rivets or self-tapping screws. The doors of the casing are equipped with an elastic sealing gasket and are locked with the help of a bar lock according to the patent for utility model RU No. 149572 (publ. 10.01.2015) LLC PROMTECH LLC, which provides better sealing of the doors. The door bolt lock is equipped with an “Anti-panic” internal opening device, known from the patent for utility model RU 155077 (published on 09/20/2015) by PROMTECH LLC, which ensures personnel safety in case of accidents and other situations. This technical solution is selected for the closest analogue of the claimed utility model. Despite the advantages compared to previous analogues, such a casing is still not tight enough due to the use of detachable joints of panels, the use of detachable joints and U-shaped brackets reduces its strength. The casing has insufficiently good thermal insulation properties due to the presence of "thermal bridges" from the use of conventional U-shaped supports and insufficient tightness, as well as the small thickness of the panels, because of this it is difficult to maintain the air temperature necessary for the operation of the gas turbine installation. This limits the use of such a cover, for example, in the Far North and the Arctic regions, such covers can only be used inside a shelter, for example, in a hangar type. On the other hand, another problem of using both the casing according to RU No. 149418 and the casing according to RU No. 2241843 and RU No. 2296235 is the high temperature inside the casing during operation of the gas turbine unit. This problem is described, for example, in the patent for utility model RU No. 158471 (publ. 01/10/2016) “Block of a power gas pumping unit”. Due to high temperatures in the casing of the gas turbine installation, measuring instruments (sensors) used to control the installation parameters may fail, for this reason the sensors are installed outside the "hot" zone of the casing with the organization of remote control of parameters. In the above example, according to RU No. 158471, an infrared gas analyzer is installed outside the casing, and its sampling tubes are installed inside the duct to exhaust air from the casing. However, the sensors used to control the parameters of a gas turbine installation cannot work even at extremely low temperatures. At the same time, various cabinets for placing instrumentation are known, for example, according to the patent for utility model RU No. 44911 (publ. March 27, 2005), however, it is intended for installation on a pipeline and does not protect devices from extremely low temperatures. Or a protective cabinet for installing instrumentation according to the patent for utility model RU No. 34843 (publ. 08/10/2003), which also does not protect the equipment from low temperatures. Also known is an all-weather thermal cabinet according to the patent for invention RU No. 2609773 (publ. 02.02.2017), intended for climate protection of the control and measuring equipment placed therein; the cabinet is equipped inside with a heater with a reflective layer and a heater with a control unit with an electronic control circuit for turning the heater on and off. However, its insulation is not enough, it is operated at temperatures from minus 60 to plus 50 ° C. Also known is a protective cabinet insulated for KI-PiA manufactured by NPO RIZUR, Ryazan (a page on the Internet at http://www.rizur.ru/cat_vso.htm, a description from the catalog of 2016 is available at http: // www.rizur.ru/uploads/data/media/Metall.pdf, date of the last update 12/17/2016), which is a metal welded casing with outer and inner cases, between which a non-combustible heat-insulating material is laid. The cabinet contains an electric heater with a temperature regulator and door (s) sealed with frost-resistant rubber, as well as sealed cable / pipe gland entries. Cabinet operating temperature from minus 70 to plus 100 ° C.

The authors were faced with the task of improving the operational characteristics of the casing of a heat and sound insulating gas turbine installation (hereinafter referred to as the casing) by expanding operating conditions, including for operation in the open air at extremely low ambient temperatures, including by improving the thermal insulation properties and tightness, maintaining the required temperature inside the casing while maintaining high structural strength.

The problem is solved by creating the design of the casing of a heat and sound insulating gas turbine installation of the Arctic design.

To achieve the specified technical result, the casing comprises a frame of a gas turbine installation, a roof and walls with doors; the walls are rigidly connected to the roof and frame of the gas turbine installation; the roof and walls are made of three layers and contain external solid steel sheets, internal perforated steel sheets, between which a soundproof insulating non-combustible material is laid; the walls and the roof are made of power and contain power elements of a closed section, with which said external solid and internal perforated steel sheets are connected by welding; the doors contain: an outer box-type case made of solid steel sheet; the inner perforated case is also box-type, made of steel sheet and serving as the rear wall of the door, and heat-insulating non-combustible material located between them; the inner perforated door casing is attached to the outer casing using U-shaped supports, shelves rigidly attached to the inner surfaces of the outer casing and the inner perforated casing; the doors of the casing are equipped with a sealing elastic gasket and are locked with the help of a bar lock equipped with an “Panic” opening device from the inside, a sealing elastic gasket is laid between the gas turbine installation frame and the walls of the casing, while the door is additionally equipped with a second sealing elastic sealant made of fireproof material, in particular utility model, the door can also be equipped with intumescent fire retardant tape, the door frame contains around the perimeter of steel profile, the internal cavity of which is filled with heat and sound insulating non-combustible material, sealed with an elastic sealing gasket and a sealing elastic gasket of fire-resistant material, the door is made with a light opening, in which a two-chamber double-glazed window unit made of triplex, sealed on both sides by a sealing elastic profile, the bottom and outer walls gas turbine installation is made with cavities filled with heat and sound insulating non-combustible material, inner strips l of the power elements of the walls and roof of the casing is filled with heat and sound insulating non-combustible material, the frame of the casing is equipped with at least one built-in electric heater, the thickness of the walls and roof of the casing and heat and sound insulating non-combustible material in the walls and roof is from 100 to 150 mm, the casing is equipped with a protective insulated cabinet for housing means of measuring the parameters of a gas turbine installation installed outside the casing, the protective insulated cabinet contains a welded metal casing with outer and inner cases, I am waiting for the laying of non-combustible heat-insulating material, an electric heater with a temperature controller and door (s) sealed with frost-resistant rubber, as well as sealed cable / pipe gland entries, while the protective insulated cabinet can be made without a back wall, in this case its back the wall is the wall of the casing of the gas turbine installation, and at the places adjoining the wall of the casing, the protective insulated cabinet is sealed with frost-resistant rubber, and the wall of the casing, which serves as the back wall, can be insulated with heat insulation ayuschim layer.

In the particular case of the utility model, U-shaped supports can be made with cutouts on the wall.

In the particular case of the utility model in the cabinet of measuring instruments can be placed visual control instruments for measuring parameters of a gas turbine plant.

In the particular case of the utility model, the external solid steel sheets of the walls of the casing can have stiffeners on the inside, rigidly connected to the power elements by welding, while the width of the stiffeners is less than the wall thickness.

All welds in the casing are solid. All passages in the casing are sealed.

The execution of the casing with a double seal circuit on the doors and door frame increases the tightness of the casing and its heat-insulating properties. The use of a sealing elastic seal made of fire-resistant material, as well as an intumescent fire-retardant tape, as a secondary circuit on the doors and door frame, further increases the safety of the casing. Filling the internal cavities of the door frame and the power elements of the walls and the roof with a heat-insulating non-combustible material eliminates the “thermal bridges”, thereby improving the heat-insulating properties of the casing, as well as increasing the thickness of the walls, roof and heat-insulating non-combustible material in the walls and roof of the casing from 100 to 150 mm and execution the bottom and outer walls of the frame of a gas turbine installation with cavities filled with heat and sound insulating non-combustible material. It also contributes to improving the noise insulation characteristics of the casing. If the thickness of the walls and roof and heat and sound insulating nonflammable material is less than 100 mm, the insulation of the casing will be insufficient; with the thickness of the walls and roof and heat and sound insulating nonflammable material of more than 150 mm, the weight and material consumption of the casing increase. The execution on the inner side of the external solid steel sheets of the walls of the casing of the stiffeners, rigidly connected to the power elements by welding, with a width less than the wall thickness allows to increase the strength of the casing without the formation of "thermal bridges", as well as the use of U-shaped supports with doors cutouts. Strength and tightness are also ensured by the use of continuous welds. Tightness is also ensured by making all the passages in the casing airtight.

The implementation of the door with a light opening in which a two-chamber double-glazed window of triplex is sealed, sealed on both sides by an elastic sealing profile, allows the gas turbine unit to be inspected without going inside the casing, which ensures that the casing is kept tight and the temperature inside it is required. In addition, it increases the safety of personnel.

Equipping the casing frame with at least one built-in electric heater allows you to maintain the required temperature in the lower part of the casing and eliminate the temperature gradient inside the casing while the gas turbine installation is not working, since the equipment in the casing must always be at a temperature of at least + 5 ° C.

Equipping the casing with an additional protective insulated cabinet which serves to place the cabinet of measuring instruments (sensor cabinet) of the parameters of the gas turbine installation inside it, and which contains a welded metal casing with outer and inner cases, between which a non-combustible heat-insulating material, an electric heater with a temperature regulator, as well as sealed cable / pipe gland entries, the door (s) of which and he himself are sealed with frost-resistant rubber; the use of insulation with a reflective layer allows you to maintain the temperature necessary for the operation of measuring instruments. The placement of visual control instruments for measuring parameters of a gas turbine installation inside the cabinet of measuring instruments preserves the tightness of the casing and the temperature inside the casing, since it allows you to control the parameters of the gas turbine installation and the state of the measuring instruments without going into the casing. Sensors that can have visual control devices can serve as measuring instruments for parameters of a gas turbine installation, while their sensitive elements are usually located inside the casing, and measuring transducers and / or visual control devices can be in the cabinet of measuring instruments. Measuring instruments can also serve as means for measuring the parameters of a gas turbine installation.

All of the above improves the operational characteristics of the casing due to the ability to operate it in the open air at extremely low ambient temperatures while maintaining high strength.

Distinctive features of the proposed device from the above known, closest to it, is that the door of the casing is additionally equipped with a second sealing elastic sealant made of fire-resistant material, in the particular case of the utility model, the door can also be equipped with intumescent fire-retardant tape, the door frame contains perimeter steel profile, the internal cavity of which is filled with heat and sound insulating non-combustible material, sealed with an elastic sealing gasket and a sealing elastic sealant made of fire-resistant material, the door is made with a light opening in which a two-chamber double-glazed window unit of triplex is hermetically sealed, sealed on both sides with an elastic sealing profile, the bottom and outer walls of the gas turbine installation frame are made with cavities filled with heat and sound insulating non-combustible material the power elements of the walls and roof are filled with heat and sound insulating non-combustible material, the casing frame is equipped with at least one built-in electric heater, U-shaped supports in a particular case can be made with cutouts on the wall, the thickness of the walls and roof of the casing, heat and sound insulating non-combustible material in the walls and roof is from 100 to 150 mm, the casing is equipped with a protective insulated cabinet to accommodate the cabinet of measuring instruments for gas turbine parameters installations installed outside the casing, the protective insulated cabinet contains a welded metal casing with outer and inner cases, between which a non-combustible heat-insulating material, electric a heater with a temperature regulator and door (s) sealed with frost-resistant rubber, as well as sealed cable / pipe gland entries, while the protective insulated cabinet can be made without a back wall, in this case the back wall serves as the back wall, and in places adjoining the casing wall, the protective insulated cabinet is sealed with frost-resistant rubber, and the casing wall is insulated with an insulating layer with a reflective layer. In the particular case of the utility model in the cabinet of measuring instruments can be placed visual control instruments for measuring parameters of a gas turbine plant. In the particular case of the utility model, the external solid steel sheets of the walls of the casing may have stiffeners on the inside, rigidly connected to the power elements by welding, while the width of the stiffeners is less than the thickness of the heat-insulating non-combustible material. All welds in the casing are solid, all passages in the casing are airtight.

The combination of all these features allowed us to create a design that provides improved operational characteristics of the casing of a heat and sound insulating gas turbine unit due to the expansion of operating conditions, including for operation in the open air at extremely low ambient temperatures, including by improving thermal insulation properties and tightness, preservation the required temperature inside the casing while maintaining high structural strength.

The proposed design is illustrated in the drawing.

The figure 1 shows a General view of the casing of a heat and sound insulating gas turbine installation of the Arctic design in a perspective view, the figure 2 shows the frame of a gas turbine installation in a perspective view with a gas turbine installed on it and a protective insulated cabinet for a cabinet of measuring instruments (walls and casing roof are not shown conventionally) figure 3 shows the door of the casing, figure 4 presents the door frame, horizontal section, figure 5 shows a vertical section of the casing, the frame is conditionally not rendered, figure 6 shows a horizontal section of the casing wall, figure 7 shows a protective insulated cabinet of the measuring instruments cabinet, where 1 is the casing wall, 2 is the casing roof, 3 is the frame of the gas turbine unit serving simultaneously as the base (frame) of the casing, 4 is protective insulated cabinet for measuring cabinet 24, 5 - electric frame heater 3, 6 - gas turbine unit, 7 - door, 8 - external solid steel sheet, 9 - internal perforated steel sheet (perforation not shown), 10 - power element, 11 - heat and sound insulating ma series, 12 - outer door casing 7, 13 - inner perforated door casing 7, 14 - bolt lock, 15 - “Anti-panic”, 16 - sealing elastic gasket, 17 - sealing elastic gasket from fire-resistant material, 18 - two-chamber double-glazed window from triplex, 19 - a sealing elastic profile of a double-glazed window 18, 20 - a U-shaped support, 21 - a door frame, 22 - a profile of a door frame 21, 23 - a stiffener, 24 - a cabinet of measuring instruments, 25 - an electric heater of the protective warmed cabinet 4, 26 - a heater with a reflective layer.

The claimed technical solution for the casing of a heat and sound insulating gas turbine installation of the Arctic design can be carried out in industrial production using standard equipment and technologies. In the manufacture of a casing for a heat and sound insulating gas turbine installation, standard metal structures, metal rolling, heat-insulating and sealing materials, and fasteners are used. The casing used electric explosion-proof heaters of type НВЗ.0А220Т2-П1 for the frame, a protective insulated cabinet manufactured by NPO "RIZUR" with a built-in heater, made in an explosion-proof version, equipped with a hermetic cable gland, a cabinet of measuring instruments (sensors cabinet), supplied with a gas turbine engine manufactured by OEC-Aviadvigatel JSC, mineral wool and mineral wool mats, including fiberglass sheathed, were used as heat and sound insulating non-combustible material in the door s and door frame applied: silicone seal 483; fireproof seal Kimtec; profile silicone seal 606-R, a highly porous Stip-n-Stick 512AF silicone seal is applied between the walls and the frame, a standard rod lock is used in an intrusive version with a PUSH lock equipped with Anti-Panic of its own production.

The authors developed a casing design for a heat and sound insulating gas turbine installation of the Arctic design, which was successfully implemented for the gas turbine installation of the GPA-1001 Irtysh gas-pumping unit for the Urengoy ZPKT at the applicant’s enterprise. GPU operating temperature from minus 56 to plus 34 ° C.

Claims (9)

1. The casing of the heat and sound insulating gas turbine installation of the Arctic execution, comprising the frame of the gas turbine installation, a roof and walls with doors, rigidly connected with the roof and the frame of the gas turbine installation, the roof and walls are made of three layers and contain external solid steel sheets, internal perforated steel sheets, between which heat and sound insulating is laid non-combustible material, walls and roof are made of power and contain power elements of closed section, with which the mentioned external integral and internal morning perforated steel sheets, doors contain: an outer box-type case made of a solid steel sheet; the inner perforated case is also box-type, made of steel sheet and serving as the rear wall of the door; and heat-insulating non-combustible material located between them, the inner perforated door casing is attached to the outer casing with U-shaped supports, shelves rigidly attached to the inner surfaces of the outer casing and the inner perforated casing, the door of the casing is equipped with a sealing elastic gasket and is locked using a bar lock provided with a device for opening the inside of the "Anti-panic", between the frame of the gas turbine installation and the walls of the casing, a sealing elastic setting characterized in that the door is additionally equipped with a second sealing elastic sealant made of flame-retardant material, the door frame contains a steel profile along the perimeter, the internal cavities of which are filled with heat-insulating non-combustible material, sealed with an elastic sealing gasket and a sealing elastic sealant of fireproof material, the door is made with a light opening, in which is double-glazed double-glazed unit of triplex, sealed on both sides by a sealing the elastic profile, the bottom and outer walls of the frame of the gas turbine installation are made with cavities filled with heat and sound insulating nonflammable material, the internal cavity of the power elements of the walls and the roof of the casing is filled with heat and sound insulating nonflammable material, the frame of the gas turbine installation is equipped with at least one built-in electric heater, the thickness of the walls and the roof non-combustible material in the walls and the roof is from 100 to 150 mm, the casing is equipped with a protective insulated cabinet for placement a cabinet for measuring parameters of a gas turbine installation installed on the outside of the casing and containing a metal welded casing with outer and inner cases, between which non-combustible heat-insulating material is laid, an electric heater with a temperature regulator and a door / doors sealed / sealed with frost-resistant rubber, as well as sealed cable / pipe gland entries . 2. The casing according to claim 1, characterized in that the external solid steel sheets of the walls of the casing have stiffeners on the inside, rigidly connected to the power elements by welding, while the width of the stiffeners is less than the wall thickness. 3. The casing according to claim 1, characterized in that all the welds in the casing are solid. 4. The casing according to claim 1, characterized in that the door is provided with an intumescent fire retardant tape. 5. The casing according to claim 1, characterized in that the U-shaped supports are made with cutouts on the wall. 6. The casing according to claim 1, characterized in that the protective insulated cabinet is made without a rear wall, while the casing wall serves as its rear wall, and in places adjacent to the casing wall, the cabinet is sealed with frost-resistant rubber. 7. The casing according to claim 6, characterized in that the wall of the casing, which serves as the back wall of the protective insulated cabinet, contains a heater with a reflective layer. 8. The casing according to claim 1, characterized in that all the passages in the casing are sealed. 9. The casing according to claim 1, characterized in that in the cabinet of measuring instruments are placed visual control instruments for measuring parameters of a gas turbine installation.

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