CN-121993416-A - Shock-resistant diesel engine fire pump group

Abstract

The invention provides an anti-vibration diesel engine fire pump unit, which relates to the technical field of fire-fighting equipment and comprises an anti-vibration diesel engine fire pump unit base, a diesel engine and a fire pump, wherein the anti-vibration diesel engine fire pump unit base comprises a base frame and at least one reinforced channel steel main beam arranged on the base frame, a diesel engine main engine is fixedly arranged on the anti-vibration diesel engine fire pump unit base through an integrated base, the fire pump is fixedly arranged on the anti-vibration diesel engine fire pump unit base through a pump foot, the fire pump comprises a double-volute pump body fixedly arranged on the pump foot, a pump cover connected with the double-volute pump body and positioned above the double-volute pump body, a pump shaft penetrating through the double-volute pump body and the pump cover and a double-suction impeller arranged on the pump shaft, so that the anti-vibration performance of the diesel engine fire pump unit is improved, and the normal operation of the whole pump unit under an earthquake working condition is ensured. The axial force generated when the impeller operates can be self-balanced by the double-volute pump body and the double-suction impeller, and meanwhile, the radial force of the impeller is reduced, so that the pump shaft operates more stably.

Inventors

• WU DIQIN
• XIAO PENG
• TONG XIAOXI
• Mo Kangshan
• SHE FEI
• TAN XINYU
• YU YI
• Huang Mijun
• YANG KANG

Assignees

• 湖南南方安美消防设备有限公司

Dates

Publication Date

20260508

Application Date

20260304

Claims (10)

1. 1. An anti-knock diesel fire pump unit comprising: the base of the anti-seismic diesel engine fire pump unit comprises a base frame and at least one reinforced channel steel girder arranged in the length direction of the base frame; The diesel engine main engine is fixedly arranged on the base of the anti-vibration diesel engine fire pump set through the integrated base; The fire pump is fixedly arranged on the base of the anti-vibration diesel engine fire pump set through a pump foot, the fire pump is in driving connection with the diesel engine through a coupler, and comprises a double-volute pump body fixedly arranged on the pump foot, a pump cover connected with the double-volute pump body and positioned above the double-volute pump body, a pump shaft penetrating through the double-volute pump body and the pump cover, and a double-suction impeller arranged on the pump shaft.
2. 2. The anti-seismic diesel engine fire pump group according to claim 1, wherein the base frame comprises two parallel and spaced vertical channel steel girders and two parallel and spaced transverse channel steel girders, and the two transverse channel steel girders are respectively and vertically connected between the two vertical channel steel girders; The reinforced channel steel girders are arranged between the two transverse channel steel girders in parallel and are vertically connected between the two vertical channel steel girders.
3. 3. The anti-knock diesel fire pump unit according to claim 2, wherein the base frame is provided with a diesel mounting plate and a fire pump mounting plate; The diesel engine mounting plate comprises a diesel engine first mounting plate and a diesel engine second mounting plate, and the diesel engine first mounting plate and the diesel engine second mounting plate are symmetrically arranged on the back side of the reinforced channel steel girder respectively; And/or, the fire pump mounting plate comprises a fire pump first mounting plate and a fire pump second mounting plate, and the fire pump first mounting plate and the fire pump second mounting plate are respectively symmetrically arranged on the back side and the opposite side of the reinforced channel girder.
4. 4. The anti-knock diesel fire pump unit according to claim 3, wherein a first channel steel support is arranged below the diesel mounting plate, and welded on the base frame; and/or a second channel steel support is arranged below the fire pump mounting plate, and the second channel steel support is welded on the base frame.
5. 5. The anti-seismic diesel fire pump package according to claim 2, wherein the anti-seismic diesel fire pump package base further comprises a lifting device, the lifting device comprises a lifting welding reinforcing plate, a lifting stress pipe and a lifting baffle, the lifting welding reinforcing plate is welded on the transverse channel girder, the lifting stress pipe is penetratingly welded on the lifting welding reinforcing plate and the transverse channel girder, and the lifting baffle is welded on one end of the lifting stress pipe far away from the lifting welding reinforcing plate; And/or, the base of the anti-seismic diesel engine fire pump unit further comprises an anchor bolt installation structure welded on the transverse channel girder, wherein the anchor bolt installation structure comprises an anchor bolt installation plate and anchor bolt installation plate reinforcing ribs, anchor bolt installation holes and leveling holes are formed in the anchor bolt installation plate, and the anchor bolt installation plate reinforcing ribs are welded on the anchor bolt installation plate; And/or, antidetonation diesel engine fire pump package base still includes angle steel fixed bolster, channel-section steel fixed surface and channel-section steel fixed beam, the angle steel fixed bolster welding is in on the strengthening channel-section steel girder, the channel-section steel fixed surface welding is in horizontal channel-section steel girder top surface, the channel-section steel fixed beam welding is in horizontal channel-section steel girder side.
6. 6. The anti-knock diesel fire pump unit according to claim 1, wherein the integrated base is welded from high strength steel plate and comprises a front end support plate, a rear end support plate, a left side support plate, a right side support plate, a top connection plate and a bottom connection plate; Reinforcing rib plates are arranged on the left side supporting plate and the right side supporting plate.
7. 7. The anti-knock diesel fire pump set according to claim 1, wherein the fire pump further comprises a cartridge type mechanical seal assembly sleeved on the pump shaft for sealing a gap between the pump shaft and the double-volute pump body and the pump cover; And/or, the fire pump further comprises a first flange and a second flange, the first flange is arranged at the water inlet of the double-volute pump body, and the second flange is arranged at the water outlet of the double-volute pump body.
8. 8. The shock resistant diesel fire pump stack as set forth in claim 7 wherein said pump shaft is a stepped shaft, said pump shaft comprising: The floating end is axially floatably arranged at one end of the double-volute pump body through the first supporting component; The positioning end is axially positioned at the other end of the double-volute pump body through the second supporting component.
9. 9. The shock resistant diesel fire pump stack as set forth in claim 1 wherein said coupling outer Zhou Zhao is provided with a coupling shroud, said coupling shroud comprising: the fire pump comprises a shield body, a fire pump and a fire pump, wherein the shield body is of a hollow structure, one end of the shield body is connected with a diesel engine flywheel of the diesel engine, and the other end of the shield body is connected with a bearing seat of the fire pump; The anti-vibration diesel engine fire pump unit comprises a mounting bracket, wherein the bottom of the mounting bracket is fixedly connected with a base of the anti-vibration diesel engine fire pump unit, the top of the mounting bracket is provided with a mounting part, and the mounting part is used for supporting and fixing the shield body.
10. 10. The shock resistant diesel fire pump package of claim 1, further comprising a battery compartment, the battery compartment comprising: the battery box comprises a box body, wherein at least one partition plate is arranged in the box body so as to divide an inner cavity of the box body into a plurality of placing cavities for accommodating batteries; and the compressing piece is detachably arranged in the placing cavity and is used for compressing the battery accommodated in the placing cavity from the upper side.

Description

Shock-resistant diesel engine fire pump group Technical Field The invention relates to the technical field of fire-fighting equipment, in particular to an anti-seismic diesel engine fire-fighting pump set. Background At present, the fire pump set of the diesel engine is widely applied as standby power in the industrial fields of petrochemical industry, thermal power generation and the like. However, all the non-anti-seismic equipment adopted in the fields have inherent defects based on the conventional industrial environment in design standard, technical scheme and inspection requirements, and cannot meet extremely severe anti-seismic requirements. The main disadvantage of the existing non-anti-seismic diesel engine fire pump set is that the anti-seismic performance is insufficient. The concrete steps are as follows: the design load is insufficient, namely, the non-anti-seismic pump set only considers the internal load and the external connecting pipe load under normal working conditions when designing, and the seismic load, particularly the running safety seismic vibration (SL-1) and the limit safety seismic vibration (SL-2), is not taken into consideration. The seismic equipment is subjected to the most severe load combinations including internal loads, take-over loads and SL-2 seismic loads, which far exceed the design criteria of non-seismic pump stacks. The structure reliability is low, the supporting structure of the non-anti-seismic pump set can generate residual deformation after the SL-1 level earthquake, the long-term normal operation of the equipment is affected, and the structure is extremely easy to damage under the SL-2 level limit earthquake, so that the function of the equipment is completely lost. The system is lack of integral earthquake resistance, the design of the non-earthquake-resistant pump set lacks systematic earthquake resistance consideration, and the connection and fixing modes among the base, the diesel engine, the fire pump and other components are not subjected to cooperative optimization. Under the strong vibration and impact caused by earthquake, the key parts may be loosened and fail, so that the whole pump set cannot be reliably started and operated at the key moment, and serious potential safety hazards exist. Therefore, how to improve the shock resistance of the fire pump set of the diesel engine becomes a key technical problem to be solved by the person skilled in the art. Disclosure of Invention Aiming at the problem of how to improve the shock resistance of a diesel engine fire pump set in the prior art, the invention aims to provide the shock resistant diesel engine fire pump set. An anti-knock diesel fire pump unit comprising: the base of the anti-seismic diesel engine fire pump unit comprises a base frame and at least one reinforced channel steel girder arranged in the length direction of the base frame; The diesel engine main engine is fixedly arranged on the base of the anti-vibration diesel engine fire pump set through the integrated base; The fire pump is fixedly arranged on the base of the anti-vibration diesel engine fire pump set through a pump foot, the fire pump is in driving connection with the diesel engine through a coupler, and comprises a double-volute pump body fixedly arranged on the pump foot, a pump cover connected with the double-volute pump body and positioned above the double-volute pump body, a pump shaft penetrating through the double-volute pump body and the pump cover, and a double-suction impeller arranged on the pump shaft. Further, the base frame comprises two parallel and spaced vertical channel steel girders and two parallel and spaced transverse channel steel girders, and the two transverse channel steel girders are respectively and vertically connected between the two vertical channel steel girders; The reinforced channel steel girders are arranged between the two transverse channel steel girders in parallel and are vertically connected between the two vertical channel steel girders. Further, a diesel engine mounting plate and a fire pump mounting plate are arranged on the base frame; The diesel engine mounting plate comprises a diesel engine first mounting plate and a diesel engine second mounting plate, and the diesel engine first mounting plate and the diesel engine second mounting plate are symmetrically arranged on the back side of the reinforced channel steel girder respectively; And/or, the fire pump mounting plate comprises a fire pump first mounting plate and a fire pump second mounting plate, and the fire pump first mounting plate and the fire pump second mounting plate are respectively symmetrically arranged on the back side and the opposite side of the reinforced channel girder. Further, a first channel steel support is arranged below the diesel engine mounting plate and welded on the base frame; and/or a second channel steel support is arranged below the fire pump mounting plate, and the second channel steel support is