CN117212597A - Water hammer elimination tank - Google Patents

Abstract

The utility model discloses a water hammer eliminating tank, which relates to the technical field of secondary pressurized water supply, and particularly relates to a water hammer eliminating tank, which comprises a tank body arranged on a pipeline, wherein two ends of the tank body are hemispherical, the middle of the tank body is cylindrical, a discharge pipe and a discharge pipe for realizing medium flow are arranged at two ends of the tank body, an adjusting corrugated pipe is arranged on the inner side wall of the tank body, and a plurality of fourth diversion holes are formed in each corrugated section of the adjusting corrugated pipe; the corrugated pipes are respectively covered at the water inlets and the water outlets at the front end and the rear end of the tank body, and the corrugated pipes are used for separating and covering the medium in the tank body, so that the whole tank body is high in damping density and high in buffering overall efficiency, the impact force of the water hammer can be quickly ablated, the phenomenon of movement of the fluid in the tank is restrained, and the practicability and durability of the water hammer elimination tank are effectively improved.

Description

Water hammer elimination tank

Technical Field

The utility model relates to the technical field of secondary pressurized water supply, relates to the technical field of water supply and drainage engineering, relates to the technical field of oil and gas storage and transportation, and particularly relates to a water hammer eliminating tank.

Background

The utility model provides a municipal tap water pipe network secondary pressure boost water supply installation, is abbreviated as secondary pressure boost water supply system, means to install one set of water supply pump station additional at municipal tap water pipe network's end, carries out the repressurization treatment to municipal tap water to satisfy user's needs of using water. When municipal water supply pressure is insufficient, building water supply pressurization is needed, and the water supply pressure can be increased to meet the use requirement. Modern buildings are pressurized almost without exception using centrifugal pumps. In the use process, when the water pump is suddenly started and stopped, the check valve is suddenly opened and closed, the electromagnetic valve is rapidly opened and closed, and the like, water hammer phenomenon can occur in a pipeline system. When a water hammer occurs, a very high pressure may build up in the pipe system, causing the pipe to burst. At present, in the water delivery process with large flow, long distance and high drop, the water hammer has huge destructive power, the light vibration of a pump station and a pipeline is caused, the heavy vibration of the pump station and the pipeline is caused to produce a pipe explosion accident, and the pump house is submerged to produce huge economic loss. The conventional non-negative pressure pressurizing device has single water hammer protection and can not effectively protect the safety of the whole pump station. When the water pump is stopped accidentally (stopping the pump, mechanical failure, etc.), the slow-closing check valve at the rear end of the water pump is generally closed in two stages, the former stage is closed quickly, and the latter stage is closed slowly (the valve is closed completely in this stage). By closing in two stages, the flow rate is not too changed too severely, thereby reducing the probability of water hammer occurrence. When the water hammer occurs, high-pressure water can be discharged to the front end of the water pump before the second stage of the slow-closing check valve is closed after early-stage debugging, so that the pipeline safety at the rear end of the water pump is protected. However, since the non-negative pressure system is a closed system, the discharged high-pressure water can impact the pipeline and the valve at the front end of the water pump. In addition, the outlet of the non-negative pressure equipment is provided with a pressure relief valve, and when the perceived pressure exceeds the warning value, the valve is opened. However, the water hammer is often fast in pipeline propagation speed, the valve is likely to be opened less quickly, and high-pressure water hammer waves can beat the pipeline and the valve to cause a water hammer pipe explosion accident. Conventional double-tank pump stations are often of empty tank structure, and are far from adequate in protection against water hammer from water hammer.

The secondary water supply is a form that urban public water is stored, pressurized and supplied to users again through pipelines. The secondary pressurizing water supply system is composed of a pressurizing pump, a water tank, a valve, a pipeline and the like, and the main working principle of the secondary pressurizing water supply system is that a water supply pump station is established at the tail end of a municipal tap water pipe network, tap water entering the pump station is pressurized through the pressurizing pump, then the tap water is sent into the water tank for storage, and then is conveyed to a water consumption position of a user through the pipeline. Thus, secondary water supply is currently the only option for high rise building water supply. The secondary water supply facility is mainly used for making up the pressure deficiency of municipal pipelines and guaranteeing water consumption of people living, living and working in high-rise buildings. Multi-storey and high-rise buildings are more and more, and secondary pressurized water supply equipment is more and more widely applied to resident water supply, so that the normal and safe operation of the water supply equipment is important. The existing secondary pressurized water supply equipment mainly comprises a water pump unit, a pipe fitting, an electric control part and the like, is connected with a municipal pipe network and a user pipe network to form a closed system, when the equipment is suddenly stopped, the flow speed of water changes, the pressure change is overlarge, namely, a water hammer effect exists, the water supply equipment inlet and outlet pipe orifices repeatedly generate pressure oscillation, larger pressure is generated on the pipe fitting, and the water delivery pipeline is broken when serious. In view of the technical problems in the prior art, there is a strong need for a non-negative pressure water supply device for preventing water hammer from occurring to solve the above technical problems. The water hammer eliminating tank is widely applied to secondary pressurized water supply and mainly comprises a tank body, wherein facilities such as a water inlet pipe, a negative pressure inhibitor and the like are arranged on the tank body. In the prior art, after water enters the tank body from the water inlet pipe, water hammer phenomenon is caused, as described above, the tank body is rocked on the support due to impact on the tank body, and the damage of the tank body and the support is accelerated. Meanwhile, the water in the tank body shakes too much, so that the impact force of the water entering the negative pressure inhibitor is large, water seepage of the negative pressure inhibitor is easy to occur, and the welding part of the opening of the tank wall is easy to lose welding water. In addition, the structure of the existing secondary pressurizing water supply device is generally simpler, the water hammer effect is easy to occur when the water in the water tank is fully stored, the device is damaged, meanwhile, the exhaust pipe is easy to enter dust, and the water source in the water tank is polluted, so that technical improvement is urgently needed.

The prior published utility model applies for patent No. negative pressure water supply device with water hammer protection function (CN 115839116A). This patent relates to water supply and drainage engineering technical field, includes: the device comprises a steady flow tank, a water inlet collecting pipe, a water outlet branch, a water outlet collecting pipe, a water hammer eliminating tank, an electric valve and a controller; the water flow flows in from the steady flow tank, flows through the water inlet collecting pipe, is converged at the water outlet collecting pipe through a plurality of water outlet branches connected with the water inlet collecting pipe, and is divided into two paths when the water flow is about to reach the outlet of the water outlet collecting pipe, wherein one path flows into the water hammer eliminating tank through the water hammer eliminating pipe, and the other path flows out from the discharge pipe orifice of the water outlet collecting pipe. The utility model controls the opening and closing of each valve in the device through the pump station management platform control controller, and realizes the water hammer protection and the non-negative pressure water supply by combining the water hammer elimination tank. The water hammer protection device is added to the water supply device in the water supply process, so that the water hammer protection is realized, and the damage such as pipeline rupture and the like possibly caused by the water hammer phenomenon is avoided. The water hammer eliminating tank has a gas-liquid structure comprising rubber bag, water is stored in the rubber bag, the gap between the eliminating tank shell and the rubber bag is filled with air, and the water hammer is eliminated by buffering with a compressed air spring. However, the rubber bag has the problems of weak corrosion resistance, easy aging and damage in the long-term use process and short service life. The inner container type water hammer eliminating tank has weaker bearing capacity at the flange position of the rubber inner container and is easy to break down by high pressure. When the telescopic joint or the short pipe of the lower compression liner is required to be disassembled for replacement and maintenance, the caliber is large, the pressure is high, the telescopic joint or the short pipe weighs hundreds of kilograms, and the operation space is limited below the tank body, so that the telescopic joint or the short pipe is inconvenient. Or lifting the whole water hammer eliminating tank by using lifting equipment, thereby increasing the cost and prolonging the maintenance time; the air bags are arranged, and the air bags are inflated at intervals when needed, so that the installation and the use are inconvenient. It is therefore necessary to devise a structure that avoids the above-mentioned problems, that is, a water hammer eliminating tank.

The prior published utility model grants patent "a steady flow tank" (CN 106638805B). The patent comprises a tank body, wherein a water inlet pipe and a negative pressure inhibitor are arranged above the tank body; the water inlet pipe comprises an upper half pipe and a lower half pipe; the upper half pipe is positioned outside the tank body, and the lower half pipe is positioned in the tank body; the lower end of the lower half pipe is of a closed structure, and a first water leakage hole is formed in the pipe wall of the lower half pipe; the negative pressure inhibitor is communicated with the inside of the tank body through a connecting pipe; the connecting pipe bottom plate is closed, and a second water leakage hole is formed in the pipe wall of the connecting pipe. Compared with the prior art, the water inlet pipe and one end of the connecting pipe, which is positioned in the tank body, are set as blind ends, and the water leakage holes are formed in the pipe walls of the lower half pipe and the connecting pipe, so that water slowly enters the tank body and the negative pressure inhibitor, the water hammer phenomenon is eliminated, the impact force on the tank body is reduced, and the water seepage phenomenon of the negative pressure inhibitor is also reduced. However, the processing technology of the water leakage hole on the lower half pipe of the patent is more complicated, by adopting the method, the impact force of the water hammer in the tank body can not be completely eliminated, the water body only collides and buffers through the inner walls of the tank body and the pipe body, a vortex is formed to smooth the impact force of water flow, the energy of the water hammer is not thoroughly ablated, the water body in the tank still has certain kinetic energy and generates impact force, the negative pressure inhibitor still can be impacted, water seepage is caused, and the pressure and current stabilizing effect in the whole tank body is still not ideal. The steady flow tank, more precisely, is a water hammer eliminating tank.

The prior published utility model grants patent 'non-negative pressure water supply equipment with water hammer protection function' (CN 204919687U). The device comprises a steady flow tank, a water pump unit, a buffer tank, a slow-closing check valve and a variable frequency control cabinet, wherein a discharge pipe orifice, a negative pressure inhibitor and a liquid level sensor are arranged at the top of the steady flow tank, a first valve and the water pump unit are sequentially connected with a discharge pipe orifice at the bottom of the steady flow tank, the slow-closing check valve and a second valve are sequentially connected with a discharge pipe orifice of the water pump unit, the second valve is connected with a water outlet pipeline of equipment, the buffer tank is arranged on the water outlet pipeline of the equipment, a third valve is arranged between the buffer tank and the water outlet pipeline of the equipment, a pressure sensor is arranged on the water outlet pipeline of the steady flow tank and the water outlet pipeline of the equipment, and the water pump unit, the negative pressure inhibitor, the liquid level sensor and the pressure sensor are electrically connected with the variable frequency control cabinet through wires. The utility model has ingenious overall structural design, reduces the impact of the water hammer of the pump, controls the influence of the water hammer in an effective range, and improves the water supply quality of the water supply equipment. The steady flow tank 3 and the buffer tank 8 are essentially water hammer eliminating tanks. The buffer vessel 8 is an airbag buffer vessel, i.e. is buffered by means of a so-called compressed gas spring.

In terms of the technical field of oil and gas storage and transportation, oil and gas can be volatilized when the oil and gas are received and emitted in the existing oil and gas storage tank, so that the breathing loss is caused, and therefore, the water hammer eliminating tank is necessary to be manufactured, and can be directly connected with the oil tank, so that the breathing loss of the oil storage tank can be reduced more economically and more efficiently. The main method is to connect a plurality of storage tanks, increase the gas phase volume and reduce the breathing loss. When the pressure in the tank is small, nitrogen is also filled to maintain the balance of the tank pressure. The prior published utility model applies for a patent of oil and gas storage tank pressure balancing device (CN 115751184A). The real-time balance of tank pressure is realized by injecting fuel gas into the water sealed tank, and waste caused by oil gas emission is avoided. Under specific scenes, the breathing loss of the petroleum storage tank can be reduced efficiently and economically. The technology of the patent has complex process, large engineering investment, increased cost investment and large later maintenance cost.

To sum up, in order to solve the problems existing in the prior art: the water hammer eliminates the defects of weak corrosion resistance, easy aging and damage and short service life of the rubber capsule of the tank liner; when the steady flow tank is fed with water, the water hammer phenomenon is serious, and the tank body is swayed on the bracket due to the impact on the tank body, so that the bracket is damaged; the impact force of water in the tank body is large, and the negative pressure inhibitor is easy to permeate water. The present utility model has been made to solve the above-mentioned problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a water hammer eliminating tank, which solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the water hammer eliminating tank is used for eliminating water hammer phenomenon of a pipeline and realizing stable pressure and current, and comprises a tank body arranged on the pipeline, wherein two ends of the tank body are hemispherical, the middle of the tank body is cylindrical, a discharge pipe and a discharge pipe for realizing medium flow are arranged at two ends of the tank body, an adjusting corrugated pipe is arranged on the inner side wall of the tank body, and a plurality of fourth diversion holes are formed in each corrugated section of the adjusting corrugated pipe; the inner side walls of the two ends of the tank body and at the positions of the discharge pipe and the discharge pipe are respectively provided with a damping part, and the damping parts are used for changing the flow direction of the medium through each diversion hole so as to eliminate unstable flow of the medium; each damping part comprises a second corrugated pipe, and a plurality of second diversion holes are formed in each corrugated section of the second corrugated pipe.

Optionally, a negative pressure inhibitor is arranged outside the tank body, and the control end of the negative pressure inhibitor is communicated with one end of the adjusting corrugated pipe.

Optionally, each damping component further includes a first bellows, the first bellows is sleeved outside the second bellows, one end of the first bellows is fixedly connected with the inner side wall of the tank body, each bellows is provided with a plurality of first diversion holes, and each first diversion hole is aligned with each second diversion hole along a vertical line.

Optionally, each damping component further comprises a waterproof hammer component arranged in the second corrugated pipe, one end of the waterproof hammer component is communicated with the discharge pipe or the discharge pipe, the waterproof hammer component comprises a built-in corrugated pipe and an inner sleeve, the inner sleeve is sleeved outside the built-in corrugated pipe, and one end parts of the inner sleeve and the inner sleeve are fixedly installed through a flange plate.

Optionally, a damping baffle is fixedly installed at one end of the built-in corrugated pipe, and a plurality of through holes which are annularly distributed are formed in the damping baffle.

Optionally, the discharge pipe is provided with a second valve, and the discharge pipe is provided with a first valve.

Optionally, the second bellows, the first bellows, the adjusting bellows and the built-in bellows are all made of materials with certain toughness, and the first bellows, the second bellows, the adjusting bellows and the built-in bellows are elastically deformed when impacted by a medium, so that buffering and variable damping force are provided, and the medium impact force amplitude is reduced.

Optionally, a concave part for accommodating impurities is arranged at the middle low point of the middle part of the tank body, and a drain pipe for discharging impurities is arranged at the concave part of the tank body.

(III) beneficial effects

The utility model provides a water hammer eliminating tank, which has the following beneficial effects:

(1) According to the water hammer eliminating tank disclosed by the utility model, the damping parts are arranged at the pipe ends of the discharge pipe and the discharge pipe, so that unstable flow (namely, water hammer) of a medium (comprising water, oil, gas and the like) can be pre-eliminated, the flowing medium firstly enters the second corrugated pipe at the first time, and the second corrugated pipe is used for pre-eliminating water flow well; the cooperation of the first bellows of medium rethread outside suit is as another level of cutting down the water hammer deployment, and the combined action is similar to form multichannel protection line, makes the elimination water hammer effect better, makes steady voltage stationary flow effect better, and can alleviate the burden of waterproof hammer pipe fitting and structure, prevents that the bellows from telescoping too fast. In the use process of the tank body, oil, gas and water can form the basic characteristics of the air bag type buffer tank, namely, the air bag can be formed in the tank body, which is beneficial to the technical exertion of the hammer eliminating function.

(2) According to the water hammer elimination tank, the sleeved corrugated pipes are arranged at the inlet and the outlet at the two ends of the inner part of the water hammer elimination tank, and each sleeved corrugated pipe has an elastic effect, so that enough flowing buffering and damping can be provided, the shaking frequency and the shaking amplitude of media in the tank body can be effectively restrained, and the practicability and the durability of the tank body are improved. Compared with the prior art, the storage tank has the technical progress that: the tank body manufacturing process and the assembly process are simple, the installation and the maintenance are convenient, and the operation is simple, so that the effect of convenient installation is achieved, and the problem that the existing device is inconvenient to install is solved. More importantly, compared with the existing storage tanks of the same type, the tank body processing cost is greatly reduced.

(3) Through the mode of designing a plurality of through holes on the sleeved corrugated pipe body, and the through holes are aligned vertically along the vertical line, damping can be improved when a medium flows, and the effect of opposite impact energy dissipation is generated; the impact force is absorbed through the elastic deformation of the corrugated pipe, and the two factors are mutually matched to generate comprehensive energy consumption, so that the impact force on the front end, the rear end, the upper wall surface and the lower wall surface of the tank body is reduced, and meanwhile, the internal fluidity is further improved. The utility model solves the problem of uneven mass distribution caused by the concentration of the liquefied medium (especially liquid hydrogen) in part of compartments when the volume is small, and improves the stability and the safety of the transport vehicle. Has the advantages of simple structure, safety, reliability, good buffering effect and the like. The corrugated pipe is perfectly matched with the existing technology of the gas medium storage tank and the liquid medium storage tank, and the comprehensive performance and the use type of the natural gas storage tank and the gas medium storage tank are improved.

(4) The two corrugated pipes of the damping parts inside the tank body of the storage tank are arranged in the horizontal direction, and respectively cover the discharge pipe orifice and the discharge pipe orifice, so that the storage tank is convenient for filling and convenient for inflating and deflating the high-pressure gas medium storage tank when being used for storing high-pressure gas medium, the stability of the high-pressure gas medium storage tank during inflating and deflating is ensured, and the inflating and deflating efficiency is improved; the gas medium filling device can reduce energy consumption, improve filling efficiency, realize more efficient, quick and low-cost gas medium filling, and can realize the gas medium sources of a plurality of hydrogenation branches to the same gas medium storage tank if used for the hydrogenation station, and the whole system has a simple structure. The existing storage tank is provided with a plurality of baffles inside, the tank bottom is difficult to clean, compared with the existing storage tank, the tank bottom is not provided with the baffles connected with the inner wall of the tank bottom, so that the tank bottom is easy to clean, the use and application range of the high-pressure gas medium storage tank are further increased, and the high-pressure gas medium storage tank is convenient to popularize and use.

(5) At present, the storage of Liquefied Petroleum Gas (LPG) or liquids such as propane, butane, natural gas condensate (hydrocarbon mixture) in oil and gas field production sites is usually carried out by using a horizontal storage tank or a spherical storage tank; the chemical products are packaged, stored and transported in a barrel, a tank and other packaging modes, and the chemical transportation storage tank is used for often transporting some liquids with strong acid and strong alkali, strong corrosiveness and high danger. The storage tank is simple to manufacture and assemble, convenient to reduce manufacturing cost, multipurpose in one tank, and obvious in economic advantage.

(6) The sleeved corrugated pipe can generate the functions of integrated buffering and damping coupling, and the sleeved corrugated pipes at the two ends can cover most of the medium in the tank, so that the impact force of the medium moving back and forth or moving up and down can be well ablated, and the problem of high manufacturing cost of the tank body is solved by using a simple method and using cheap corrugated pipe materials.

(7) The water hammer eliminating tank can be expanded to the field of vehicle-mounted storage tanks. The vehicle-mounted storage tank has the advantages that huge inertial impact force of a medium in the tank acts on the front end and the rear end of the tank body during braking or impact force impacts the inner wall of the tank body up and down during road condition jolting, a series of safety problems can be caused, and the prior art is not ideal in coping with the problems and the method. The corrugated pipes are sleeved on the air inlets and the air outlet covers at the front end and the rear end of the tank body, and at least two or more corrugated pipes are used for separating and holding the medium in the tank body. Meanwhile, the sleeved corrugated pipes are respectively covered at the inlet and the outlet, so that the impact force of gas medium injection and gas medium discharge can be effectively reduced, the pressure and flow stabilizing effect can be achieved when the gas inlet or the gas exhaust is used, the huge impact force formed at the two ends of the tank body can be effectively reduced, the vibration of the whole high-pressure tank body is avoided, and the device and the filling pipeline can also be protected and are convenient to use. The through holes are arranged on the corrugated pipe body and vertically aligned along the vertical direction of the corrugated pipe body, so that the flow of each separation area in the tank is excellent, no dead angle exists, and the gas medium in the hydrogen storage area is convenient to exhaust, so that the waste of the gas medium is avoided. In addition, the cleaning and maintenance work of the inner wall of the tank body in the later period is convenient.

(8) This water hammer eliminates jar, and in the jar bottom intermediate position sets up this concave part and is favorable to the collection to the impurity in the jar, and sets up the impurity in the blow off pipe can discharge the concave part fast, more conveniently cleans in the jar.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic sectional view of a water hammer eliminating tank according to the present utility model (second embodiment);

FIG. 2 is a schematic cross-sectional view of a water hammer eliminating tank according to the present utility model (first embodiment);

FIG. 3 is a schematic cross-sectional view of a water hammer eliminating tank according to the present utility model (third embodiment);

fig. 4 is a schematic perspective view of an inner sleeve of a water hammer eliminating tank according to the present utility model (third embodiment);

fig. 5 is a schematic perspective view of a bellows in a water hammer eliminating tank according to the present utility model (third embodiment);

FIG. 6 is a schematic perspective view of a water hammer eliminating tank with built-in bellows and inner sleeve according to the present utility model (third embodiment);

fig. 7 is a schematic front view of a damper baffle of a water hammer eliminating tank according to the present utility model (third embodiment).

In the figure: 1. a tank body; 2. a negative pressure suppressor; 3. a first bellows; 301. a first deflector aperture; 4. adjusting the corrugated pipe; 401. a fourth deflector aperture; 5. a second bellows; 501. a second deflector aperture; 6. a discharge pipe; 7. a first valve; 8. a discharge pipe; 9. a second valve; 10. a corrugated pipe is arranged in the inner part; 1001. damping baffle; 11. an inner sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The water hammer eliminating tank can be applied to water supply and drainage pipelines which are easy to generate water hammer, oil conveying pipelines which are easy to generate water hammer, gas conveying pipelines which are easy to generate water hammer, and the water hammer eliminating tank can be applied to the field of transportation of gas media and liquid media.

Example 1

Referring to fig. 2, the present utility model provides the following technical solutions: the water hammer eliminating tank is used for eliminating water hammer phenomenon of a pipeline and realizing stable pressure and current, and comprises a tank body 1 arranged on the pipeline, wherein two ends of the tank body 1 are hemispherical, the middle part of the tank body is cylindrical, a discharge pipe 8 and a discharge pipe 6 for realizing medium flow are arranged at two ends of the tank body 1, an adjusting corrugated pipe 4 is arranged on the inner side wall of the tank body 1, and a plurality of fourth diversion holes 401 are formed in each corrugated section of the adjusting corrugated pipe 4; the inner side walls of the two ends of the tank body 1 and at the positions of the discharge pipe 8 and the discharge pipe 6 are respectively provided with a damping part, and the damping parts are used for changing the flow direction of the medium through each diversion hole so as to eliminate the unstable flow of the medium; each damping member includes a second bellows 5, and a plurality of second guide holes 501 are provided on respective bellows of the second bellows 5. The outside of the tank body 1 is provided with a negative pressure inhibitor 2, and the control end of the negative pressure inhibitor 2 is communicated with one end of an adjusting corrugated pipe 4.

The corrugated pipes are fixed on the inner walls of the front end and the rear end of the tank body 1 through a welding method, and the two corrugated pipes which are concentrically sleeved are respectively covered and arranged at the inlet pipe orifice and the outlet pipe orifice. After the corrugated pipes of the left hemisphere and the right hemisphere are welded, the two hemispheres are combined together, and the whole spherical tank body is formed by a welding method. After the weight of the corrugated pipe is offset with the buoyancy generated by the pipe body, the downward falling force of part is small, and the damage stress generated on the welding part of the inner wall of the tank is small. The water hammer eliminating tank can be used as a ground air storage tank and also can be used as a vehicle transportation air storage tank. As a hydrogen storage tank, the corrugated pipes are made of 304 stainless steel, and have higher corrosion resistance and hydrogen embrittlement resistance.

The inner walls of the front end and the rear end of the tank body 1 are provided with force sensors for detecting impact force, and an impact force detection and alarm system is in the prior art and is not described in detail herein. ( The alarm system also comprises a control circuit and an alarm, wherein the control circuit mainly comprises a comparator and a controller, and also comprises VCC, a power supply anode, UO and a reference voltage. And an impulse detecting section, wherein the force sensor converts the impulse into a voltage signal, and the voltage is higher as the impulse is larger. The alarm works using this principle. Wherein, the controller can adopt conventional singlechip, and the alarm can adopt bee calling organ, and the alarm can set up in the driver's cabin, through cable connection controller. )

The hydraulic ram eliminating tank is based on the integrated damping buffering and coupling linkage of the corrugated pipe, can stabilize pressure and flow, can reduce impact force on two ends of the tank body, prevents the negative pressure inhibitor, and prevents the welding position of the opening from being out of welding and leaking. The technology can improve the existing tank body, two corrugated pipes are concentrically sleeved on the inner walls of the left end and the right end of the tank body in the horizontal direction in the spherical tank body, a plurality of through holes are designed on the four corrugated pipe bodies, the through holes are uniformly distributed along the circumference of the corrugated pipe bodies, the through holes of the large corrugated pipe and the small corrugated pipe are aligned along the vertical line, damping can be improved when oil water flows, the effect of opposite impact energy consumption is formed, the effect of buffer integration is formed, the effect of variable damping and coupling is formed, the impact force to the two ends of the corrugated pipes and the upper wall surface and the lower wall surface of the tank body is reduced, and meanwhile, the internal fluidity is not influenced.

The bellows belongs to flexible system, and the bellows of taking the through-hole can produce elastic deformation, provides the buffering, provides variable damping force, consequently can reduce impact force amplitude. By adjusting the stiffness of the bellows, its elasticity can be adjusted. The elasticity of the corrugated pipe body is added with the damping effect of the damping through holes, so that variable damping force can be provided, and the whole tank has high damping density and high buffering overall efficiency. Thereby achieving the effect of stabilizing the pressure in the tank body.

Further specifically, the discharge pipe 8 is provided with a second valve 9, and the discharge pipe 6 is provided with a first valve 7.

Specifically, the second corrugated pipe 5 and the adjusting corrugated pipe 4 are made of materials with certain toughness, and the second corrugated pipe 5 and the adjusting corrugated pipe 4 are elastically deformed when impacted by a medium to provide buffering and variable damping force, so that the amplitude of the impact force of the medium is reduced.

The middle low point position in the middle of the tank body 1 is provided with a concave part for accommodating impurities, and a drain pipe for discharging the impurities is arranged at the concave part of the tank body 1.

The water in the tank is impacted downwards by the corrugated pipe hole flow beam covered by the inlet in the process of moving from the left end to the right end, deposited impurities at the bottom are easy to float, the flow field in the tank can enable the water to move back and forth between the upper part and the lower part in the tank, the water quality in the tank is guaranteed, especially, the water at the lower part in the tank can be driven to move upwards, impurities are favorably brought to the upper part of the concave part, after the floating impurities move to the upper part of the weight center area of the tank, the water flow direction is changed into the downward vertical direction, opposite flushing is formed between the floating impurities and the water moving upwards, the flow speed is reduced, the impurities are favorably settled in the concave part, the impurities are easier to be intensively treated, and the sewage pipe is arranged to discharge the impurities from the sewage pipe, so that the impurities are more convenient to clean. In order to further accelerate the cleaning speed and enhance the cleaning effect, the drain pipe is provided with a drain pump, when the drain is discharged, the drain pump is opened, and the impurities in the concave part can be sucked out of the tank body under the action of strong suction force, so that the cleaning is easier. Moreover, the water body in the tank can be fully driven to move along the same direction when water is added into the tank, so that the generation of dead water is avoided, and then a water source for resident sanitation can be provided, the corrugated pipe arranged in the tank inlet and outlet mask can also play a role in filtering impurities, the impurities floating on the water surface can be prevented from entering the inner cavity of the tank body, meanwhile, the impurities sinking in the inner bottom of the tank can be prevented from entering the water pipe, and the conveyed water is cleaner and more sanitary.

The application of the water hammer eliminating tank in water supply and drainage pipelines is as follows: the non-negative pressure (pipe network pressure-superposed) variable-frequency water supply equipment is a secondary pressurized water supply equipment which is rapidly developed in recent years in China, and is fourth-generation water supply equipment which is widely applied after water supply by a water tank, air pressure water supply and variable-frequency water supply technologies. The device has the advantages of small occupied space, no secondary pollution, energy conservation (fully utilizing residual pressure and pressure superposed water supply of municipal pipe network), low operation cost, simple and convenient installation, easy management, high automation degree and the like. The non-negative pressure (pipe network pressure-superposed) variable-frequency water supply equipment consists of a non-negative pressure steady-flow tank (on which a negative pressure inhibitor is arranged, namely, a negative pressure inhibitor), a water pump unit, a system pipeline valve and a control system. The device is directly connected with the municipal pipe network, runs in a totally-enclosed mode, and is supplied with water by pressure superposition of the municipal pipe network, so that the energy-saving purpose is achieved, and the municipal pipe network is not affected. This is mainly effected by a non-negative pressure steady flow tank, also called a water hammer eliminating tank.

The water hammer eliminating tank has the advantages that the elastic corrugated pipe moves more naturally in the water body, the structure is simple, the production is easy, and the floating force is good. The water outlet holes which are horizontal, vertical and symmetrical in the same direction can wrap the movement speed of the water body in the clamping tank to move in the same direction, so that the water delivery effect is further enhanced.

The working principle of the water hammer eliminating tank is that municipal tap water directly enters the tank body, air in the tank is discharged through a negative pressure inhibitor, the negative pressure inhibitor is closed, so that the pressure in the tank is the same as the pressure of a municipal pipe network, the pressure is directly applied to a suction inlet of a water pump, and the water pump is continuously pressurized on the basis of the pressure; when the water consumption is greater than municipal pipe network supply volume in the twinkling of an eye, the negative pressure inhibitor opens, and in the air entering jar, jar memory water this moment can compensate municipal water supply not enough, guarantees that equipment is incessantly stable to can not form and cause municipal pipe network local pressure to drop when the water consumption is greater than the supply volume, appear the negative pressure even. When the water consumption is smaller than the water supply, the liquid level in the tank is opened, air is emptied through the negative pressure inhibitor, municipal pressure acts on the water pump through the tank, and the pressure-superposed water supply is continuously realized.

The water hammer eliminating tank can also play a role in non-negative pressure steady flow compensation, can play a role in inhibiting negative pressure generation and can perform compensation when water coming in a short time is smaller than water consumption, and is connected between a municipal pipe network and a water pump unit. The tank runs totally closed, so that small animals such as mosquitoes, flies and the like formed in the water storage of the water tank are prevented from entering the water tank, but the precipitation effect of the water tank on impurities (rust falling objects on the pipe wall and the like) in water is lost, and the impurities are directly brought to users, and the defect is commonly existing in the existing non-negative pressure water supply equipment. According to the utility model, the sewage drain pipe is arranged at the lower part of the tank body, so that convenience is provided for solving the problem.

Example two

Referring to fig. 1, compared with the first embodiment, the difference between this embodiment is that: each damping part further comprises a first corrugated pipe 3, the first corrugated pipe 3 is sleeved outside the second corrugated pipe 5, one end of the first corrugated pipe 3 is fixedly connected with the inner side wall of the tank body 1, a plurality of first diversion holes 301 are formed in each corrugated joint of the first corrugated pipe 3, and each first diversion hole 301 is aligned with each second diversion hole 501 along a vertical line.

The first bellows 3 is made of a material with certain toughness, and the first bellows 3 is elastically deformed when impacted by a medium to provide buffering and variable damping force, so that the amplitude of the medium impact force is reduced.

The two corrugated pipes are sleeved, and the two-layer hollow structure is characterized in that a plurality of through holes are arranged on the corrugated pipe body to form a porous pipe with one end being a blind plate, and the through holes are used as flow guide holes to guide the inertia force of the medium in the corrugated pipe in the horizontal direction to the vertical direction; the through holes are aligned vertically, so that opposite impact can be formed when the medium flows, the friction force of fluid flow is increased, and the energy consumption effect is generated; four bellows body elasticity buffering follow-up from this forms the structure resonance, produces the elasticity opposite with the inertial force in horizontal direction and vertical direction, weakens and offset the inertial force that dashes forward, dashes backward, dashes upward and dashes downward, consequently in business turn over mask dress bellows, can provide integrated damping buffering and coupled linkage's combined action in the jar body, reduces can also improve inside mobility to jar body both ends and upper and lower wall's impulsive force. Meanwhile, the corrugated pipes are matched with each other, so that impact force is borne jointly, the impact force is dispersed, the burden of a single corrugated pipe can be lightened, the corrugated pipe is benefited from the corrugated pipe, the corrugated pipe is not easy to damage, the service life is prolonged effectively.

The water hammer eliminating tank has corrugated pipes covered separately on the exhaust pipe ports and the exhaust pipe ports in the front and the back ends of the tank body 1, and medium inside the tank body is separated and packed with at least two or more corrugated pipes. The left side and the right side of the gravity center of the tank body are opposite to each other, the pipe bottom of the outer corrugated pipe forms a clamping effect on the weight center of the tank body, and the pipe bottom of the outer corrugated pipe and the pipe bottom of the inner corrugated pipe form a clamping effect in the same way, so that liquid can shake from one end of the storage tank to the other end of the storage tank, and in the vertical direction of the radial surface, the impact on the two ends and the upper wall surface and the lower wall surface of the storage tank can be eliminated by self-balancing damping distribution function in a self-balancing mode due to the fact that the impact forms linkage effect, the damping can be deformed into a dominant damping state, multiple impact energy dissipation effects are formed, and a composite and coupled buffering and damping comprehensive effect is formed, so that the whole tank body has high damping density and high buffering integral efficiency. The corrugated pipes are symmetrically covered on the inlet and the outlet on different radial sections of the tank body respectively by using low-cost corrugated pipe materials, so that the stress of the whole storage tank is dispersed and uniform, and the shock resistance is improved. The huge inertial impact force can be quickly ablated, so that the service performance of the storage tank is expanded.

When the water hammer eliminating tank is used as a hydrogen storage tank, the water hammer eliminating tank is characterized in that: the through holes on the corrugated pipe body form an airflow channel, and the irregular movement of the shaking fluid in the storage tank is guided into regular movement, so that the transmission rate is greatly reduced, and the purposes of controlling and stabilizing the fluid fluctuation are achieved. The corrugated pipes are respectively arranged on the inner wall of the discharge pipe orifice and the inner wall of the discharge pipe orifice of the tank body 1, so that the impact of hydrogen on the wall of the tank body 1 during hydrogen charging or hydrogen discharging can be alleviated, and the problem that the movement of media in the tank body 1 is unbalanced due to uneven stress at the left end and the right end of the tank body 1 due to inertia impact force is solved. The practicability of the hydrogen storage tank is improved; the corrugated pipes sleeved at the two ends respectively divide the air flow at the front end and the rear end of the hydrogen storage tank into a plurality of small air flows, and the sleeved corrugated pipes also serve as guide radiating fins at the moment, so that the problem that the vehicle-mounted hydrogen storage tank is not thoroughly radiated in a single radiating mode is solved; the radial surfaces of the inlet and the outlet are respectively covered with the sleeved corrugated pipes, so that the effect similar to that of the guide cover and the guide holes can be achieved, hydrogen entering the guide cover is divided into a plurality of small airflows through the guide holes, because the centers of the through holes on the inner corrugated pipe body and the outer corrugated pipe body are on the same vertical line, the small airflows are tightly matched and mutually influenced when entering and exiting through the through holes, and energy is transmitted from one side to the other side through the interaction, damping is variable and coupled, so that the air inlet pressure at the joint of the tank body and the hydrogen injection pipe is reduced, and the durability of the hydrogen storage tank is improved; the circular through hole of approximate horizontal direction, when the bellows warp, the through hole becomes approximate ellipse by circular to can improve the effect that the through hole discretizes to the vibration shearing force in vertical, do benefit to the impact force of buffering the vertical direction, also buffered the shearing destructive power that bears on the bellows body promptly, and then do benefit to the life that improves the hydrogen storage jar.

Example III

Referring to fig. 3 to 7, compared with the first embodiment, the difference between the present embodiment is that: each damping part further comprises a waterproof hammer assembly arranged in the second corrugated pipe 5, one end of the waterproof hammer assembly is communicated with the discharge pipe 8 or the discharge pipe 6, the waterproof hammer assembly respectively comprises a built-in corrugated pipe 10 and an inner sleeve 11, the inner sleeve 11 is sleeved outside the built-in corrugated pipe 10, and one end parts of the built-in corrugated pipe 10 and the inner sleeve are fixedly mounted through a flange plate.

Specifically, a damping baffle 1001 is fixedly installed at one end of the built-in corrugated pipe 10, and a plurality of through holes which are annularly distributed are formed in the damping baffle 1001.

More specifically, the built-in corrugated pipes 10 are made of materials with certain toughness, and the first corrugated pipe 3, the second corrugated pipe 5, the adjusting corrugated pipe 4 and the built-in corrugated pipe 10 are elastically deformed when being impacted by a medium, so that buffering and variable damping force are provided, and the amplitude of the impact force of the medium is reduced.

The application of the water hammer eliminating tank in the secondary water supply field is as follows: in the secondary water supply industry, negative pressure suppressors used on variable frequency non-negative pressure water supply equipment are in various forms, such as mechanical, electric, high pressure water flow supplementing, air bag with springs and the like, but the structures are relatively complex. The water seepage of the negative pressure inhibitor comprises the water seepage of the welding-off joint of the negative pressure inhibitor and the tank body and the water seepage of the negative pressure inhibitor. And the negative pressure suppressor is damaged and difficult to maintain. And thus its protection technique is important. Because the inlet cover of the negative pressure inhibitor is provided with the corrugated pipe, the corrugated pipe has elasticity, when the water body in the tank shakes violently, the bottom surface of the corrugated pipe is stressed upwards, and the corrugated pipe contracts, so that the impact force of the water body on the upper negative pressure inhibitor is slowed down; the folds of the corrugated pipe body can increase fluid disturbance, so that water flows entering the corrugated pipe from all directions collide and are opposite to each other when the water flows entering the corrugated pipe from all directions meet, the kinetic energy of water is consumed, the water flows smoothly transition along the folds of the inner wall of the corrugated pipe body, the flow speed of the water is reduced and the impact force is weakened under the buffering action of the folds of the inner wall of the corrugated pipe body; meanwhile, the compression extrusion of the adjacent folds of the corrugated pipe body is disturbed and reduced, and the pressure of the internal fluid pressure of the corrugated pipe body and the external environment pressure to the corrugated pipe body can be uniformly dispersed, so that the structural stability of the corrugated pipe body is maintained. In other words, the corrugated pipe is not damaged by the way of covering the corrugated pipe on the inner wall of the connecting part of the tank body of the negative pressure suppressor due to the fact that the water hammer effect is used for compressing fluid, and the high local stress is generated on the pipe body of the corrugated pipe, but the water hammer effect can be reduced to a great extent, the pressure of the water hammer effect on the negative pressure suppressor is further reduced, and therefore the connecting part of the pipe body and the tank wall is protected, and the upper negative pressure suppressor is protected. Compared with the existing hard straight pipe water leakage hole mode lacking elasticity, the protection effect is better. Therefore, the problem of water seepage of the negative pressure inhibitor can be effectively solved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The utility model provides a water hammer elimination jar, its water hammer phenomenon that is used for eliminating the pipeline appearance realizes steady voltage stationary flow, its characterized in that: the novel medium-pressure tank comprises a tank body (1) arranged on a pipeline, wherein two ends of the tank body (1) are hemispherical, the middle of the tank body is cylindrical, a discharge pipe (8) and a discharge pipe (6) for realizing medium flow are arranged at two ends of the tank body (1), an adjusting corrugated pipe (4) is arranged on the inner side wall of the tank body (1), and a plurality of fourth diversion holes (401) are formed in each corrugated section of the adjusting corrugated pipe (4); damping components are arranged on the inner side walls of the two ends of the tank body (1) and positioned at the positions of the discharge pipe (8) and the discharge pipe (6), and the damping components are used for changing the flow direction of the medium through each diversion hole so as to eliminate unstable flow of the medium; each damping part comprises a second corrugated pipe (5), and a plurality of second diversion holes (501) are arranged on each corrugated section of the second corrugated pipe (5).

2. A water hammer elimination tank according to claim 1, wherein: the outside of the tank body (1) is provided with a negative pressure inhibitor (2), and the control end of the negative pressure inhibitor (2) is communicated with one end of the adjusting corrugated pipe (4).

3. A water hammer elimination tank according to claim 2, wherein: each damping part further comprises a first corrugated pipe (3), the first corrugated pipe (3) is sleeved outside the second corrugated pipe (5), one end of the first corrugated pipe (3) is fixedly connected with the inner side wall of the tank body (1), a plurality of first diversion holes (301) are formed in each corrugated section of the first corrugated pipe (3), and each first diversion hole (301) is aligned with each second diversion hole (501) along a vertical line.

4. A water hammer elimination tank according to claim 2, wherein: each damping part further comprises a waterproof hammer assembly arranged in the second corrugated pipe (5), the waterproof hammer assembly comprises a built-in corrugated pipe (10) and an inner sleeve (11), the inner sleeve (11) is sleeved outside the built-in corrugated pipe (10), and one end parts of the inner sleeve and the inner sleeve are fixedly mounted through a flange plate.

5. A water hammer elimination tank according to claim 4, wherein: one end of the built-in corrugated pipe (10) is fixedly provided with a damping partition plate (1001), and a plurality of through holes which are annularly distributed are formed in the damping partition plate (1001).

6. A water hammer elimination tank according to any one of claims 1 to 5, wherein: the discharge pipe (8) is provided with a second valve (9), and the discharge pipe (6) is provided with a first valve (7).

7. A water hammer elimination tank according to any one of claims 1 to 5, wherein: the second corrugated pipe (5), the first corrugated pipe (3), the adjusting corrugated pipe (4) and the built-in corrugated pipe (10) are made of materials with certain toughness, and the first corrugated pipe (3), the second corrugated pipe (5), the adjusting corrugated pipe (4) and the built-in corrugated pipe (10) are elastically deformed when impacted by a medium, so that buffering and variable damping force are provided, and the medium impact force amplitude is reduced.

8. A water hammer elimination tank according to claim 2, wherein: the middle low point position in the middle of the tank body (1) is provided with a concave part for accommodating impurities, and a drain pipe for discharging the impurities is arranged at the concave part of the tank body (1).