CN218325283U - Earthquake-resistant base of earthquake load level and nuclear safety level air compressor unit - Google Patents

Abstract

Earthquake-resistant base of seismic load level includes: the earthquake-proof base comprises a channel steel bracket, a bottom bearing beam, an internal reinforcing rib, an auxiliary supporting beam, a metal piston type spring vibration isolator and a reinforcing rib, wherein the rigid structure greatly improves the strength of the earthquake-proof base, and the metal piston type spring vibration isolator can effectively buffer the influence of earthquake waves; the nuclear safety level air compressor unit is connected with the antidetonation base through the supplementary channel-section steel that sets up different positions, shape, makes it outside can handling inside operation vibration, still can handle the influence that comes from outside earthquake wave, improves and shakes the reliability of back equipment operation in the earthquake, and secondly, the setting up of unit inside elastic coupling, central bracket has reduced inside operation torsional force, further promotes the shock resistance.

Description

Earthquake-resistant base of earthquake load level and nuclear safety level air compressor unit

Technical Field

The utility model relates to a nuclear power station and the emergent reserve air supply compressed air system technical field of spentnuclear fuel aftertreatment factory specifically are earthquake-resistant base and nuclear safety level air compressor unit of earthquake load level.

Background

The nuclear safety level air compressor unit is used for emergency standby air source compressed air systems of nuclear power plants and spent fuel reprocessing plants, and when the nuclear power plants and the spent fuel reprocessing plants lose normal compressed air system air sources, the nuclear safety level air compressor unit provides air sources for process emergency equipment and instrument safety level equipment so as to ensure that the nuclear safety level equipment or safety related level equipment can execute functions.

The maximum ground motion that can be experienced within a reasonably predictable plant floor during the operational lifetime is known as the operational reference earthquake (OBE); the largest earthquake that may be experienced within a factory floor is known as a safe shut-down earthquake (SSE). The nuclear safety air compressor set can bear OBE and SSE earthquake loads, can be started within specified time when the earthquake loads occur and/or after the earthquake, and automatically or manually carries the load to continuously run.

The nuclear safety air compressor unit must meet the following technical requirements: RS grade of mechanical equipment, earthquake resistant class I, quality assurance grade QA2; electrical equipment 1E class, anti-seismic class I class, quality assurance level QA1; instrumentation and control equipment 1E grade, earthquake resistant class I, quality assurance grade QA2.

In the aspect of patent technology, a utility model patent with the Chinese patent number of 201820664040.x is named as a damping air compressor unit, and comprises a compressor main body and a damping device; the damping device comprises a base, a damping layer for reducing external impact and an energy absorption plate. The main characteristics are as follows: by arranging the energy absorption plate, the vibration generated when the air compressor set works can be absorbed, so that the resonance phenomenon is reduced; through setting up the buffer layer to can prevent that outside impact from producing the influence to the normal operating of air compressor unit.

Although the technical scheme solves the anti-seismic requirement of the air compressor unit in the running process of the internal equipment, the following defects still exist:

1. the air compressor unit can only absorb the vibration generated by the air compressor unit when the air compressor unit works through the damping device, so that the resonance phenomenon is reduced;

2. the shock absorption device (common base) composed of the shock absorption layer and the energy absorption plate has poor rigidity and cannot resist the vibration and impact influence on the air compressor unit caused by the seismic loads from the OBE and the SSE;

3. the damping layer in the damping device is composed of a plurality of plastic damping blocks, the high-temperature resistance and low-temperature resistance of the damping layer are poor, the damping layer is easy to age due to erosion of temperature, oil, ozone and the like, the service life of the damping layer is generally 5-10 years, and the anti-seismic performance of the damping layer is poor along with the extension of time;

4. the existing air compressor unit can not be started within a specified time when suffering from OBE and SSE earthquake loads and/or after an earthquake, and can automatically or manually carry to continuously operate.

From the defects, the nuclear safety grade air compressor set in the prior art is difficult to deal with the external OBE and SSE earthquake influence.

The utility model provides an earthquake load level's antidetonation base and nuclear safety level air compressor unit solves above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

Earthquake-resistant base of seismic load level includes: channel-section steel support 1, bottom spandrel girder 2, inside strengthening rib 3, four channel-section steels head and the tail welding are channel-section steel support 1, the channel-section steel of 1 both sides of channel-section steel support with 2 welded fastening of bottom spandrel girder just the both ends of bottom spandrel girder 2 all with the channel-section steel face welded fastening at 1 both ends of channel-section steel support, channel-section steel support 1 is provided with inside strengthening rib 3, inside strengthening rib 3 with 2 directions of bottom spandrel girder are perpendicular.

Preferably, in the earthquake load-level earthquake-resistant base, mounting holes are formed in the plate surfaces of the bottom bearing beam 2 on the two sides of the channel steel bracket 1, and the two ends of the internal reinforcing ribs 3 are inserted into the mounting holes and fixed with the plate surfaces on the two sides of the mounting holes.

Preferably, earthquake load level's antidetonation base, 1 middle part of channel-section steel support is provided with one or more bottom spandrel girder 2, middle part the length both ends of bottom spandrel girder 2 with the channel-section steel face welded fastening at 1 both ends of channel-section steel support still includes auxiliary erection bracing beam 6, auxiliary erection bracing beam 6 and middle part 2 curb plate face welded fastening of bottom spandrel girder.

Preferably, earthquake load level's antidetonation base, inside strengthening rib 3 is the channel-section steel, bottom spandrel girder 2 is in position processing has under inside strengthening rib 3 hoist hole 21, the both sides face card of 3 channel-section steels of inside strengthening rib is in hoist hole 21 both sides 2 faces of bottom spandrel girder, the face processing of auxiliary supporting beam 6 has the mounting hole, inside strengthening rib 3 passes the mounting hole of auxiliary supporting beam 6.

Preferably, earthquake load level's antidetonation base still includes metal piston spring isolator 5, metal piston spring isolator 5 includes upper support frame 51, attenuator 52, metal spring 53, lower support base 54, mounting nut 55, construction bolt 56, be provided with between upper support frame 51, the lower support base 54 attenuator 52, construction bolt 56's lower extreme with lower support base 54 is fixed, the upper end is passed through construction nut 55 with upper support frame 51 is fixed, construction bolt 56 has cup jointed metal spring 53 just metal spring 53 is located between upper support frame 51, the lower support base 54, upper support frame 51 with channel-section steel support 1's lower plate is fixed.

Preferably, the earthquake load-level earthquake-resistant base further comprises reinforcing ribs 4, the reinforcing ribs 4 are arranged on the inner sides of the channel steels in the channel steel bracket 1, and the reinforcing ribs 4 are intensively arranged on two sides of the installation position of the metal piston type spring vibration isolator 5 or/and the end parts of the channel steels.

The utility model provides a be provided with above-mentioned antidetonation base's nuclear safety level air compressor unit, includes antidetonation base, sound-proof housing 19, main motor 7, resilient coupling 8, compressor host 10, admission valve 12, air-cooled module 13, heat exchanger 14, oil-gas separation module 15, control by temperature change oil and strain module 16, oil filter 17, appearance accuse cabinet 18, sound-proof housing 19 is fixed face on the antidetonation base, main motor 7, resilient coupling 8, compressor host 10, admission valve 12, air-cooled module 13, heat exchanger 14, oil-gas separation module 15, control by temperature change oil and strain module 16, oil filter 17, appearance accuse cabinet 18 are all arranged in 19 inner chambers of sound-proof housing and with the antidetonation base is direct or indirect connection.

Preferably, the nuclear safety air compressor unit further comprises a central bracket 9 and an air filter assembly 11, the main motor 7 is connected with a main shaft of a male rotor of the main compressor 10 through the elastic coupling 8, the air inlet of the main compressor 10 is provided with the air inlet valve 12, and the end flange of the main motor 7 is connected with a front end cover spigot of the main compressor 10 through the central bracket 9; the air filter assembly 11 is connected with the air inlet valve 12, the air filter assembly 11 is fixed through an air filter assembly mounting plate 111, and two ends of the air filter assembly mounting plate 111 are respectively fixedly connected with the central bracket 9 and the air inlet valve 12; 19 departments of sound-proof housing are provided with air cooling module 13, oil-gas separation module 15 with the oil gas exit linkage of compressor host 10, oil-gas separation module 15 produce oil the end with module 16 is strained to the control by temperature change oil is connected, module 16 is strained to the control by temperature change oil is provided with and accesss to respectively the oil return pipe of 14 directions of heat exchanger, accesss to compressor host 10's oil return pipe is provided with oil cleaner 17, the upper end blast pipe of oil-gas separation module 15 accesss to heat exchanger 14, the lower extreme of oil-gas separation module 15 is provided with the drain. Preferably, nuclear safety level air compressor unit, main motor 7 through first supplementary channel-section steel 71, second supplementary channel-section steel 72 with the antidetonation base is fixed, the both ends of first supplementary channel-section steel 71 with bottom spandrel girder 2 welded fastening and side face with inside strengthening rib 3 welded fastening, the both ends of second supplementary channel-section steel 72 welded fastening respectively the last face of inside strengthening rib 3, the last face of first supplementary channel-section steel 71, main motor 7 fix with screw the last face of second supplementary channel-section steel 72.

Preferably, nuclear safety level air compressor unit, compressor host 10 through third auxiliary channel-section steel 101, compressor host mount pad 102 with the antidetonation base is fixed, the both ends of third auxiliary channel-section steel 101 respectively with channel-section steel support 13 face welded fastening of inside strengthening rib, compressor host mount pad 102 with the third auxiliary channel-section steel 101 screw fixation, compressor host 10 is fixed the face is fixed on the compressor host mount pad 102.

Preferably, nuclear safety level air compressor unit, oil-gas separation module 15 is through fifth supplementary channel-section steel 151, oil-gas separation mount pad 152, oil-gas separation module 15 with oil-gas separation mount pad 152 is fixed, two the both ends of fifth supplementary channel-section steel 151 respectively with channel-section steel support 1, 3 face welded fastening of inside strengthening rib, oil-gas separation mount pad 152 with fifth supplementary channel-section steel 151 screw fixation.

Preferably, nuclear safety level air compressor unit, air cooling module 13 is through first matching board 131, fourth auxiliary channel-section steel 132, air cooling module support frame 133, two one side face of first matching board 131 with face welded fastening on the internal reinforcement 3, the one end of first matching board 131 with fourth auxiliary channel-section steel 132 curb plate face welded fastening, the other end with auxiliary supporting beam 6 welded fastening, fourth auxiliary channel-section steel 132 processing has inside strengthening rib to keep away the position groove and keeps away the position groove card through inside strengthening rib and block face and welded fastening on the internal reinforcement 3, air cooling module support frame 133 with first matching board 131, fourth auxiliary channel-section steel 132 face screw fixation, first matching board 131, fourth auxiliary channel-section steel 132 with channel-section steel support 1's last face flushes.

Preferably, the instrument control cabinet 18 of the nuclear safety air compressor unit is fixed with the anti-seismic base and is embedded in the sound-proof housing 19, and the instrument control cabinet comprises a control cabinet of the two units and two operation screens which are respectively used for controlling the air compressor unit and controlling the micro-thermal regeneration adsorption drying device unit. The two operation screens are respectively the operation panels of the two units. One instrument control cabinet is compatible with the control functions of the two units, the problem that remote signal transmission signals between the units are weakened is solved, and the reliability of the equipment is improved. The starting reliability of the unit is improved, the availability of the unit is greatly improved when and/or after an earthquake occurs, and the unit can be ensured to finish starting operation within 15s after the earthquake occurs.

Preferably, in the nuclear safety air compressor unit, the air cooling module 13 includes a fan motor 134, an air guide cover 135 and a centrifugal fan blade 136, the fan motor 134 is in power connection with the centrifugal fan blade 136, the centrifugal fan blade 136 is located inside the air guide cover, and the heat exchanger 14 is fixed to the air cooling module support frame 133 and the air guide cover.

Preferably, the nuclear safety air compressor unit, the oil-gas separation module 15 includes minimum pressure valve 153, the upper end blast pipe of oil-gas separation module 15 is provided with minimum pressure valve 153.

Preferably, in the nuclear safety air compressor set, the upper end of the oil-gas separation module 15 is provided with a pressure relief pipe 154 connected with the air inlet valve 12.

Preferably, in the nuclear safety air compressor unit, an engine head oil return pipe 155 connected to an engine head oil return port of the compressor main unit 10 is disposed at the upper end of the oil-gas separation module 15, and the engine head oil return pipe 155 is provided with a check valve for lubricating an engine head part.

The working principle is as follows:

the anti-seismic base: the steel channel structure is welded into a rigid steel structure box type frame, the rigid steel structure box type frame comprises an outer frame, a bottom bearing beam and an inner reinforcing rib, and in addition, a reinforcing rib is arranged, so that the strength of the anti-seismic base is greatly improved, and the installation of an upper structure is facilitated on the basis of effectively increasing the strength by the installation supporting beam; the metal piston type spring vibration isolator has the advantages of excellent performance, long service life and low natural frequency of a vibration isolation system, can effectively prevent the mechanical vibration damage generated by the unit, and can effectively obstruct and buffer the influence of seismic waves on the unit. The rigidity and the damping coefficient of the metal piston type spring vibration isolator are mainly determined by the number, the length and the diameter of spring steel wires of the damper and the metal spring, and the metal piston type spring vibration isolator can be designed according to the shock absorption and shock resistance requirements, and the metal spring vibration isolator can have smaller rigidity and larger damping ratio (0.1%) which is larger than the damping ratio (0.04%) of an air compressor unit. The natural frequency of the vibration isolation system consisting of the metal piston type spring and metal piston type spring vibration isolators can be as low as 3Hz, and is lower than the natural frequency (10 Hz) of the vibration isolation system of the air compressor set in the prior art. The lower natural frequency of the vibration isolation system can be far away from the natural frequency of the unit body, so that the influence of the mechanical vibration of the unit body is effectively isolated, the frequency of the seismic wave peak value is avoided, and the good vibration and shock absorption performance is ensured.

The anti-seismic base can ensure enough corresponding strength under the influence of seismic waves, and the metal piston type spring vibration isolator can effectively buffer the influence of the seismic waves.

Main motor, compressor host computer, air cooling module, oil-gas separation module among the nuclear safety level air compressor unit are all provided with supplementary channel-section steel in the antidetonation base position that corresponds the position below, and supplementary channel-section steel is fixed with the antidetonation base after, above-mentioned structure and supplementary channel-section steel screw fixation, when making things convenient for superstructure installation, further strengthen nuclear safety level air compressor unit's shock strength. The rigidity is strong, and the vibration and impact influence on the unit caused by the seismic loads from the OBE and the SSE can be completely resisted. The unit has high starting reliability, the availability of the unit is greatly improved when and/or after an earthquake occurs, and the unit can be started and operated within 15s after the earthquake occurs.

The main motor and the compressor main engine are connected with the central bracket through the elastic coupler, the coaxiality, the integral rigidity and the torsional stress of a shafting are relatively small, and the torsional vibration of the shafting can be reduced in the running process of the unit.

The air cooling module improves the shock resistance of the equipment by connecting the heat exchanger, the centrifugal fan blade and the fan motor into a whole and fixing the heat exchanger, and can ensure better air cooling effect.

Drawings

The embodiments are further described with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a seismic base part of a seismic loading stage related to the utility model;

fig. 2 is a schematic structural diagram of a metal piston type spring vibration isolator in an earthquake load level earthquake-proof base according to the present invention;

FIG. 3 is a general block diagram of a nuclear safety air compressor unit according to the present invention;

FIG. 4 is a top plan view of a portion of a nuclear safety class air compressor package according to the present invention;

FIGS. 5 and 6 are partial structural diagrams of the nuclear safety air compressor set related to the present invention;

fig. 7 is a first matching plate structure view according to the present invention;

the specific structure corresponding to the number is as follows:

the device comprises a channel steel bracket 1, a bottom bearing beam 2, an internal reinforcing rib 3, a reinforcing rib 4, a metal piston type spring vibration isolator 5, an upper support frame 51, a damper 52, a metal spring 53, a lower support base 54, a mounting nut 55, a mounting bolt 56, a mounting support beam 6, a main motor 7, a first auxiliary channel steel 71, a second auxiliary channel steel 72, an elastic coupling 8, a central bracket 9, a compressor host 10, a third auxiliary channel steel 101, a compressor host mounting seat 102, an air filter assembly 11, an air filter assembly mounting plate 111, an air inlet valve 12, a cooling module 13, a first matching plate 131, a fourth auxiliary channel steel 132, an air cooling module support frame 133, a fan motor 134, an air guide cover 135, a centrifugal fan blade 136, a heat exchanger 14, an air-oil separation module 15, a fifth auxiliary channel steel 151, an air-oil separation mounting seat 152, a minimum pressure valve 153, a pressure relief pipe 154, an oil return pipe 155, a temperature control oil filter module 16, an oil filter 17, a control cabinet 18 and an oil return cover 19,

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

Specific embodiment example 1:

earthquake-resistant base of seismic load class includes: channel-section steel support 1, bottom spandrel girder 2, inside strengthening rib 3, four channel-section steels head and the tail welding are channel-section steel support 1, the channel-section steel of 1 both sides of channel-section steel support with 2 welded fastening of bottom spandrel girder just the both ends of bottom spandrel girder 2 all with the channel-section steel face welded fastening at 1 both ends of channel-section steel support, channel-section steel support 1 is provided with inside strengthening rib 3, inside strengthening rib 3 with 2 directions of bottom spandrel girder are perpendicular.

Further, the two sides of the channel steel support 1 are provided with mounting holes in the surface of the bottom bearing beam 2, and the two ends of the internal reinforcing ribs 3 are inserted into the mounting holes and fixed with the surfaces of the two sides of the mounting holes.

Optionally, the internal reinforcing rib 3 is a channel steel, the lifting hole 21 is machined in the position of the bottom spandrel girder 2 under the internal reinforcing rib 3, and the plate surfaces of the two sides of the channel steel of the internal reinforcing rib 3 are clamped on the plate surfaces of the bottom spandrel girder 2 on the two sides of the lifting hole 21.

Optionally, the steel channel bracket further comprises reinforcing ribs 4, and the reinforcing ribs 4 are arranged on the inner sides of the steel channels in the steel channel bracket 1.

Specific embodiment example 2:

on the basis of the specific embodiment 1,

earthquake load level's antidetonation base, 1 middle part of channel-section steel support is provided with one bottom spandrel girder 2, middle part the length both ends of bottom spandrel girder 2 with the channel-section steel face welded fastening at 1 both ends of channel-section steel support still includes an auxiliary erection bracing roof beam 6, an auxiliary erection bracing roof beam 6 and middle part 2 curb plate face welded fastening of bottom spandrel girder.

Further, the plate surface of the auxiliary support beam 6 is processed with a mounting hole, and the internal reinforcing rib 3 passes through the mounting hole of the auxiliary support beam 6.

Specific embodiment example 3:

on the basis of the specific implementation cases 1 and 2,

further, still include metal piston spring isolator 5, metal piston spring isolator 5 includes upper support frame 51, attenuator 52, metal spring 53, lower support base 54, mounting nut 55, construction bolt 56, be provided with between upper support frame 51, the lower support base 54 attenuator 52, the lower extreme of construction bolt 56 with lower support base 54 is fixed, the upper end is passed through construction nut 55 with upper support frame 51 is fixed, construction bolt 56 cup joints metal spring 53 just metal spring 53 is located between upper support frame 51, the lower support base 54, upper support frame 51 with the lower plate face of channel-section steel support 1 is fixed.

Optionally, the reinforcing ribs 4 are intensively arranged on two sides of the installation position of the metal piston type spring vibration isolator 5 or/and the end part of the channel steel.

Specific embodiment example 4:

the nuclear safety air compressor unit fixed on the anti-seismic base comprises the anti-seismic base in specific embodiment cases 1-3, a sound-proof cover 19, a main motor 7, an elastic coupling 8, a compressor main machine 10, an air inlet valve 12, an air cooling module 13, a heat exchanger 14, an oil-gas separation module 15, a temperature control oil filtering module 16, an oil filter 17 and an instrument control cabinet 18, wherein the sound-proof cover 19 is fixed on the upper plate surface of the anti-seismic base, and the main motor 7, the elastic coupling 8, the compressor main machine 10, the air inlet valve 12, the air cooling module 13, the heat exchanger 14, the oil-gas separation module 15, the temperature control oil filtering module 16, the oil filter 17 and the instrument control cabinet 18 are all arranged in the inner cavity of the sound-proof cover 19 and directly or indirectly connected with the anti-seismic base.

Further, the air filter device also comprises a central bracket 9 and an air filter assembly 11, wherein the main motor 7 is connected with a male rotor spindle of the compressor main unit 10 through the elastic coupling 8, the air inlet of the compressor main unit 10 is provided with the air inlet valve 12, and a flange plate at the end part of the main motor 7 is connected with a front end cover spigot of the compressor main unit 10 through the central bracket 9; the air filter assembly 11 is connected with the air inlet valve 12, the air filter assembly 11 is fixed through an air filter assembly mounting plate 111, and two ends of the air filter assembly mounting plate 111 are respectively fixedly connected with the central bracket 9 and the air inlet valve 12; the heat exchanger 13 with the sound-proof housing 19 is fixed, 19 departments of sound-proof housing are provided with the air cooling module 13, oil-gas separation module 15 with the oil gas exit linkage of compressor host 10, oil-gas separation module 15 produce oil the end with module 16 is strained to the control by temperature change oil is connected, module 16 is strained to the control by temperature change oil is provided with and accesss to respectively the oil return line of 14 directions of heat exchanger, accesss to the oil return line of compressor host 10 accesss to the oil return line of 14 directions of heat exchanger accesss to the oil return line of compressor host 10 is provided with oil filter 17, the upper end blast pipe of oil-gas separation module 15 accesss to heat exchanger 14, the lower extreme of oil-gas separation module 15 is provided with the drain. Preferably, nuclear safety level air compressor unit, main motor 7 through first supplementary channel-section steel 71, second supplementary channel-section steel 72 with the antidetonation base is fixed, first supplementary channel-section steel 71 both ends with 2 welded fastening and the curb plate face of bottom spandrel girder with inside strengthening rib 3 welded fastening, the both ends of second supplementary channel-section steel 72 welded fastening respectively the last face of inside strengthening rib 3, the last face of first supplementary channel-section steel 71, main motor 7 fix with screw the last face of second supplementary channel-section steel 72.

Specific embodiment example 5:

on the basis of the specific embodiment 4, the specific connection structure of the main motor 7, the compressor main engine 10, the air cooling module 13, the oil-gas separation module 15, the instrument control cabinet 18 and the anti-seismic base is as follows:

the nuclear safety level air compressor unit, compressor host computer 10 through the third supplementary channel-section steel 101, compressor host computer mount pad 102 with the antidetonation base is fixed, the both ends of the third supplementary channel-section steel 101 respectively with channel-section steel support 13 face welded fastening of inside strengthening rib, compressor host computer mount pad 102 with the third supplementary channel-section steel 101 screw fixation, compressor host computer 10 is fixed the face is fixed on the compressor host computer mount pad 102.

Oil-gas separation module 15 is through fifth supplementary channel-section steel 151, oil-gas separation mount pad 152, oil-gas separation module 15 with oil-gas separation mount pad 152 is fixed, two the both ends of fifth supplementary channel-section steel 151 respectively with channel-section steel support 1, 3 face welded fastening of inside strengthening rib, oil-gas separation mount pad 152 with fifth supplementary channel-section steel 151 screw fixation.

Air-cooled module 13 is through first matching board 131, fourth auxiliary channel steel 132, air-cooled module support frame 133, two one side face of first matching board 131 with face welded fastening on the 3 inside strengthening ribs, the one end of first matching board 131 with the face welded fastening of fourth auxiliary channel steel 132 side, the other end with auxiliary supporting beam 6 welded fastening, fourth auxiliary channel steel 132 processing has inside strengthening rib to keep away the groove and keeps away the groove card through inside strengthening rib and be in face and welded fastening on the 3 inside strengthening ribs, air-cooled module support frame 133 with first matching board 131, fourth auxiliary channel steel 132 face screw fixation, first matching board 131, fourth auxiliary channel steel 132 with the last face of channel steel support 1 flushes.

The instrument control cabinet 18 and the anti-seismic base are fixed and embedded in the sound-proof housing 19, and the instrument control cabinet comprises a control cabinet of two units and two operation screens which are respectively used for controlling an air compressor unit and a micro-thermal regeneration adsorption type drying device unit. The two operation screens are respectively the operation panels of the two units. One instrument control cabinet is compatible with the control functions of the two units, the problem that remote signal transmission signals between the units are weakened is solved, and the reliability of the equipment is improved. The starting reliability of the unit is improved, the availability of the unit is greatly improved when and/or after an earthquake occurs, and the unit can be ensured to finish starting operation within 15s after the earthquake occurs.

Specific embodiment 6:

on the basis of embodiment 4 and embodiment 5,

the air cooling module 13 of the nuclear safety level air compressor unit comprises a fan motor 134, an air guide cover 135 and a centrifugal fan blade 136, wherein the fan motor 134 is in power connection with the centrifugal fan blade 136, the centrifugal fan blade 136 is located inside the air guide cover, and the heat exchanger 14 is fixed with the air cooling module support frame 133 and the air guide cover.

Further, the oil-gas separation module 15 includes a minimum pressure valve 153, and an upper end exhaust pipe of the oil-gas separation module 15 is provided with the minimum pressure valve 153.

Further, a pressure relief pipe 154 connected with the air inlet valve 12 is arranged at the upper end of the oil-gas separation module 15.

Further, the upper end of the oil-gas separation module 15 is provided with a machine head oil return pipe 155 connected with an oil return port of the machine head of the compressor main machine 10, and the machine head oil return pipe 155 is provided with a one-way valve for lubricating the machine head.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. Earthquake load level's antidetonation base, its characterized in that: including channel-section steel support, bottom spandrel girder, inside strengthening rib, four channel-section steels head and the tail welding are the channel-section steel support, the channel-section steel of channel-section steel support both sides with bottom spandrel girder welded fastening just the both ends of bottom spandrel girder all with the channel-section steel face welded fastening at channel-section steel support both ends, the channel-section steel support is provided with inside strengthening rib, inside strengthening rib with the bottom spandrel girder orientation is perpendicular.

2. An earthquake-resistant foundation of seismic load level as defined in claim 1 wherein: mounting holes are formed in the bottom bearing beam plate surfaces on the two sides of the channel steel bracket, and the two ends of the internal reinforcing ribs are inserted into the mounting holes and fixed with the plate surfaces on the two sides of the mounting holes; the channel-section steel support middle part is provided with one or more the bottom spandrel girder, middle part the length both ends of bottom spandrel girder with the channel-section steel face welded fastening at channel-section steel support both ends still includes an auxiliary supporting beam, an auxiliary supporting beam and middle part bottom spandrel girder face welded fastening.

3. An earthquake-resistant foundation of seismic load level as defined in claim 2 wherein: the inside strengthening rib is the channel-section steel, the bottom spandrel girder is in position processing has the hole for hoist under the inside strengthening rib, the both sides face card of inside strengthening rib channel-section steel in the hole for hoist both sides the bottom spandrel girder face, the face processing of auxiliary supporting beam has the mounting hole, inside strengthening rib passes auxiliary supporting beam's mounting hole.

4. An earthquake-resistant foundation of seismic load level as defined in claim 2 wherein: still include metal piston spring isolator, metal piston spring isolator includes upper bracket, attenuator, metal spring, under bracing base, mounting nut, construction bolt, be provided with between upper bracket, the under bracing base the attenuator, construction bolt's lower extreme with under bracing base is fixed, the upper end is passed through construction nut with upper bracket is fixed, construction bolt has cup jointed metal spring just metal spring is located between upper bracket, the under bracing base, upper bracket with the lower plate face mounting of channel-section steel support.

5. An earthquake-resistant foundation according to claim 4, wherein: the metal piston type spring vibration isolator is characterized by further comprising reinforcing ribs, wherein the reinforcing ribs are arranged on the inner side of channel steel in the channel steel support, and the reinforcing ribs are intensively arranged on two sides of the installation position of the metal piston type spring vibration isolator or/and the end part of the channel steel.

6. Nuclear safety level air compressor unit, its characterized in that: the anti-seismic oil filter comprises a sound-proof cover, a main motor, an elastic coupling, a compressor main engine, an air inlet valve, an air cooling module, a heat exchanger, an oil-gas separation module, a temperature control oil filter module, an oil filter and an instrument control cabinet, wherein the sound-proof cover is fixed on the anti-seismic base upper plate surface according to any one of claims 2 to 5, and the main motor, the elastic coupling, the compressor main engine, the air inlet valve, the air cooling module, the heat exchanger, the oil-gas separation module, the temperature control oil filter module, the oil filter and the instrument control cabinet are all arranged in an inner cavity of the sound-proof cover and are directly or indirectly connected with the anti-seismic base.

7. The nuclear power plant as recited in claim 6 wherein: the main motor is connected with a male rotor spindle of the compressor main engine through the elastic coupling, the air inlet of the compressor main engine is provided with the air inlet valve, and the end flange of the main motor is connected with a front end cover spigot of the compressor main engine through the central bracket; the air filter assembly is connected with the air inlet valve, the air filter assembly is fixed through an air filter assembly mounting plate, and two ends of the air filter assembly mounting plate are respectively fixedly connected with the central bracket and the air inlet valve; the heat exchanger with the sound-proof housing is fixed, sound-proof housing department is provided with the wind cooling module, the oil-gas separation module with the oil gas exit linkage of compressor host computer, the oil end that produces oil of oil-gas separation module with the module connection is strained to the control by temperature change oil, the control by temperature change oil is strained the module and is provided with and accesss to respectively the oil return pipeline of heat exchanger direction, accesss to the oil return pipeline of compressor host computer, accesss to the oil return pipeline of heat exchanger direction inserts and accesss to the oil return pipeline of compressor host computer, accesss to the oil return pipeline of compressor host computer is provided with oil filter, the upper end blast pipe of oil-gas separation module accesss to the heat exchanger, the lower extreme of oil-gas separation module is provided with the drain.

8. The nuclear safety grade air compressor package of claim 6, wherein: the main motor is fixed with the anti-seismic base through a first auxiliary channel steel and a second auxiliary channel steel, two ends of the first auxiliary channel steel are fixedly welded with the bottom bearing beam, a side plate surface is fixedly welded with the internal reinforcing rib, two ends of the second auxiliary channel steel are fixedly welded on an upper plate surface of the internal reinforcing rib and an upper plate surface of the first auxiliary channel steel respectively, and the main motor is fixed on the upper plate surface of the second auxiliary channel steel through screws; the compressor host computer pass through the third auxiliary channel-section steel, compressor host computer mount pad with the antidetonation base is fixed, the both ends of the third auxiliary channel-section steel respectively with the channel-section steel support inside strengthening rib face welded fastening, the compressor host computer mount pad with the third auxiliary channel-section steel screw fixation, the compressor host computer is fixed the face is fixed on the compressor host computer mount pad.

9. The nuclear power plant as recited in claim 6 wherein: the oil-gas separation module is fixed with the oil-gas separation mounting seat through a fifth auxiliary channel steel and an oil-gas separation mounting seat, two ends of the two fifth auxiliary channel steels are respectively welded and fixed with the channel steel bracket and the surface of the internal reinforcing rib, and the oil-gas separation mounting seat is fixed with the fifth auxiliary channel steel through screws; the air cooling module is through first matching board, fourth auxiliary channel steel, air cooling module support frame, two one side face of first matching board with face welded fastening on the inside strengthening rib, the one end of first matching board with fourth auxiliary channel steel curb plate face welded fastening, the other end with auxiliary supporting beam welded fastening, the processing of fourth auxiliary channel steel has inside strengthening rib to keep away the constant head tank and keeps away the constant head tank card through inside strengthening rib and block face and welded fastening on the inside strengthening rib, air cooling module support frame with first matching board, fourth auxiliary channel steel face screw fixation, first matching board, fourth auxiliary channel steel with the last face of channel steel support flushes.

10. The nuclear safety grade air compressor package of claim 6, wherein: the wind cooling module comprises a fan motor, a wind scooper and a centrifugal fan blade, the fan motor is in power connection with the centrifugal fan blade, the centrifugal fan blade is located inside the wind scooper, and the heat exchanger is fixed with the wind cooling module support frame and the wind scooper; or the oil-gas separation module comprises a minimum pressure valve, and an exhaust pipe at the upper end of the oil-gas separation module is provided with the minimum pressure valve; or the upper end of the oil-gas separation module is provided with a pressure relief pipe connected with the air inlet valve; or the upper end of the oil-gas separation module is provided with a machine head oil return pipe connected with an oil return port of the machine head of the compressor main machine, and the machine head oil return pipe is provided with a one-way valve; the instrument control cabinet and the anti-seismic base are fixed and embedded in the sound-proof housing, and the instrument control cabinet and the anti-seismic base comprise a control cabinet of two units and two operation screens which are respectively used for controlling the air compressor unit and the micro-thermal regeneration adsorption type drying device unit.

Images