CN111720335B - Pump station starts with vacuum steady voltage moisturizing device - Google Patents
Pump station starts with vacuum steady voltage moisturizing device Download PDFInfo
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- CN111720335B CN111720335B CN202010382309.7A CN202010382309A CN111720335B CN 111720335 B CN111720335 B CN 111720335B CN 202010382309 A CN202010382309 A CN 202010382309A CN 111720335 B CN111720335 B CN 111720335B
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- vacuum pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
- F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/044—Means for rendering the priming pump inoperative
- F04D9/045—Means for rendering the priming pump inoperative the means being liquid level sensors
- F04D9/046—Means for rendering the priming pump inoperative the means being liquid level sensors the means being floats
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a vacuum pressure-stabilizing water replenishing device for starting a pump station, which comprises a water replenishing tank, a vacuum pump, an upper suction pipe and an evacuation pipe, wherein the upper suction pipe is connected with the water replenishing tank and the water pump, the evacuation pipe is connected with the water replenishing tank and the vacuum pump, the position of the upper water replenishing tank, which is connected with the evacuation pipe, is higher than the position of the upper water replenishing tank, which is connected with the evacuation pipe, the upper suction pipe is provided with an upper suction valve, the evacuation pipe is provided with a vacuum check valve, and the direction of the vacuum check valve is from. The vacuum pump is a water ring vacuum pump, and the water replenishing tank comprises a tank body, a partition plate and an air outlet pipe, wherein the partition plate is arranged in the tank body, and the partition plate separates the tank body into two cavities: the vacuum pump comprises an upper vacuum cavity and a lower steam-water separation cavity, an upper suction pipe is connected with the bottom of the vacuum cavity, a vacuum pump air inlet is connected with an evacuation pipe, a vacuum pump air outlet is connected with the upper part of the steam-water separation cavity through an exhaust pipe, a pump body water replenishing port of the vacuum pump is connected with the lower part of the steam-water separation cavity through a water return pipe, and the top of the steam-water separation cavity is connected with the external atmosphere through an air outlet pipe.
Description
Technical Field
The invention relates to the field of water diversion and water supplement devices of centrifugal pumps, in particular to a vacuum pressure-stabilizing water supplement device for starting a pump station.
Background
The pump station needs to use a water pump as the transport power. Except for the ultra-large pump stations using axial flow pumps, most pump stations use double-suction pumps as main pumps, and some pump stations use large single-stage single-suction pumps as main pumps. No matter what type of centrifugal pump, as the starting condition of the centrifugal pump, the pump cavity and the water inlet pipeline must be filled with water and exhausted of air, and under the condition that the water level of inlet water is lower than that of the centrifugal pump, water must be introduced before the centrifugal pump is started to fill the pump cavity with water.
The water diversion mode that prior art centrifugal pump adopted mainly has three kinds: manual irrigation, jet water diversion and vacuum pump water diversion: the bottom valve is required to be arranged on the inlet pipeline of the water pump for manual irrigation, the workload is high during irrigation, the water diversion time is long, even if a self-suction water pump is used as auxiliary irrigation under the working condition of a pump station, the main water pump can still reach the starting condition for a long time, in addition, the bottom valve is arranged on the inlet pipeline of the main water pump, the inlet resistance is obviously increased, the requirement on the cavitation resistance of the main water pump is higher, and the water needs to be refilled during restarting, which is very troublesome; the judgment of the result of the jet water diversion on the water diversion is not convenient, namely whether the water diversion is finished or not is not well determined, manual observation is needed, the work doing efficiency of the jet water diversion is not high, and the energy consumption is large; vacuum pump diversion is a diversion mode that uses comparatively extensively, still is disposable, lets a vacuum pump suction water pump inlet pipe air before the water pump starts promptly, and is similar with efflux diversion, also needs to carry out the manual observation whether diversion is accomplished.
These diversion methods are all that the operation of always leading water is carried out before the water pump starts at every turn, and the start-up of water pump has the delay of certain time.
Disclosure of Invention
The invention aims to provide a vacuum pressure-stabilizing water replenishing device for starting a pump station, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a pump station starts uses vacuum steady voltage moisturizing device, connect the pump station water pump, vacuum steady voltage moisturizing device includes the moisturizing jar, the vacuum pump, inhale the top tube, manage to find time, it connects the moisturizing jar to inhale pipe one end, the water pump is connected to one end, manage to find time one end and connect the moisturizing jar, the vacuum pump is connected to one end, the position that connects the evacuation pipe on the moisturizing jar is higher than its position of connecting and inhaling the top tube, it inhales the valve to set up on the top tube, set up the vacuum check valve on the evacuation pipe, the vacuum check valve direction is from the moisturizing jar toward the vacuum pump.
The invention uses a water supplementing tank as a buffer tank, when a pump station water pump does not operate, an outlet valve on a drain pipe is arranged on a closing device, a vacuum pump pumps air in the water supplementing tank, because the water supplementing tank is also connected with the water pump, air in a pump cavity can be pumped out together, vacuum is formed in the pump cavity, water in a water tank rises from a water inlet pipe of the water pump to enter the pump cavity and submerge an impeller, the starting condition of the pump is reached, and the water pump can be started at any time after the starting condition is met. The suction pipe is connected with the highest position of the pump cavity of the water pump, so that air in the pump cavity can be completely pumped out, the operation of the water pump is not influenced by an air area, the suction valve on the suction pipe is closed when the water pump is started or immediately before the water pump is started, and otherwise, high-pressure water in the pump cavity can enter the water replenishing tank through the suction pipe in a large quantity. The vacuum pump operates to pump gas in the water replenishing tank to cause vacuum, and certain water in the water replenishing tank cannot be fully stored during pumping. If water is stored in the part connected with the water pump in the water supplementing tank, the water pump indicates that the water pump cavity is certainly filled with water, so that the water pump is always in a starting state as long as the part connected with the water pump in the water supplementing tank is filled with water.
After the water pump is operated, the outlet valve on the water discharge pipe is closed, the inlet and outlet pipelines of the water pump are all sealed by liquid, and under an ideal state (all pipelines are not leaked), water in the pump cavity cannot flow back to the water pool because no air area is filled in the pump cavity. However, in reality, an air leakage point always exists, the water in the pump cavity of the water pump and the inlet and outlet pipelines can slowly fall into the water tank, the water reserved in the water tank also flows back into the pump cavity to make up for water loss caused by air leakage, as long as the water in the water tank is not drained, the water pump is still in a starting state, after the water level in the water tank drops to the bottom, the vacuum pump is started, a large vacuum degree is built in the water tank again, some water is sucked up and reserved again, the water level range of the connection part of the water pump in the water tank can be determined through modes such as a liquid level switch, the vacuum pump is started at the time of low liquid level, and the vacuum pump is stopped at the.
One set of steady voltage moisturizing device can drag many nearly water pumps of height position, connects to set up respectively on every water pump's the pipe that inhales and inhales the valve, and the valve that inhales that corresponds with it is closed when a pump starts, opens the moisturizing jar of connecting in parallel when the pump shuts down, and the diversion steady voltage process is independent each other.
Further, the vacuum pump is the water ring vacuum pump, and the moisturizing jar is including a jar body, baffle and outlet duct, and the baffle setting is internal at the jar, and the baffle separates the jar body for two cavities: the vacuum pump comprises an upper vacuum cavity and a lower steam-water separation cavity, an upper suction pipe is connected with the bottom of the vacuum cavity, a vacuum pump air inlet is connected with an evacuation pipe, a vacuum pump air outlet is connected with the upper part of the steam-water separation cavity through an exhaust pipe, a pump body water replenishing port of the vacuum pump is connected with the lower part of the steam-water separation cavity through a water return pipe, and the top of the steam-water separation cavity is connected with the external atmosphere through an air outlet pipe.
The water ring vacuum pump has the characteristics of large gas flow, high operation efficiency and reliable operation under the rough vacuum working condition, and does not need special operation conditions such as a dry vacuum pump, a screw pump and the like to stably operate.
When the water ring vacuum pump operates, water is used as working fluid, a steam-water separator is required to be connected to an exhaust port of the water ring vacuum pump, otherwise, a large amount of water vapor is exhausted to the surrounding environment if the water vapor is directly exhausted to the atmosphere, the humidity is obviously increased, and the operation of surrounding machines and devices is not facilitated. The invention arranges the steam-water separator in the water feeding and supplementing tank: the water ring vacuum pump is characterized in that a steam-water separation cavity in the water replenishing tank is used for separating gas containing a large amount of water vapor discharged from the vacuum pump in the steam-water separation cavity, the gas is discharged from the gas outlet pipe, water remains in the steam-water separation cavity, the water ring vacuum pump needs water replenishing when in operation, and the water replenishing source is water in the steam-water separation cavity.
Furthermore, the water replenishing tank also comprises an elevation adjusting assembly, the elevation adjusting assembly is arranged in the vacuum cavity, and the elevation adjusting assembly comprises an adjusting pipe, a bottom pipe and a floating ball;
the tank body is provided with a threaded connection pipe seat, the outer surface of the adjusting pipe is provided with a section of outer pipe thread, the adjusting pipe is connected with the tank body through the outer pipe thread, one end of the adjusting pipe is vertically inserted into the vacuum cavity, the other end of the adjusting pipe is connected with the evacuation pipe, the middle part in the adjusting pipe is provided with a throat, the throat is positioned below the outer pipe thread, and the side surface of the pipe body between the throat and the outer pipe thread is also provided with an air suction hole;
the vertical connection of bottom tube is at the baffle upper surface, and the bottom tube upper end is opened, and bottom tube bottom side still is equipped with the feed liquor hole, and in the regulating tube lower extreme inserted the bottom tube, the floater was placed in regulating tube or bottom tube, and it is unsteady from top to bottom along the regulating tube axial, and two extreme positions that the floater floated from top to bottom are choke and bottom tube respectively, are equipped with first contact on choke department pipe wall, and the bottom tube bottom is equipped with the second contact, gives the switching value signal when first contact or second contact and floater contact.
The vacuum pump is operated to pump air from the vacuum cavity, the liquid level in the vacuum cavity slowly rises, water enters the two pipes from a liquid inlet hole and a gap at the splicing position of the regulating pipe and the bottom pipe, so that the floating ball floats upwards, the floating ball floats to the throat and cannot rise any more when being clamped and collides with the first contact, the first contact gives a switching value signal to stop the vacuum pump, the floating ball also moves downwards when the water level in the vacuum cavity falls, the floating ball collides with the second contact when the water level in the vacuum cavity touches the bottom, and the second contact gives the switching value signal to control the vacuum pump to start to pump air, so that the water level in the vacuum cavity continues to rise. The two contacts on the adjusting pipe and the bottom pipe serve as two liquid level switches, the adjusting pipe is in threaded connection with the tank body, so that the first contact above the adjusting pipe can move up and down along with the adjusting pipe, the distance between the two contacts is further conveniently changed, the liquid level adjusting range in the vacuum cavity is changed, the liquid level adjusting range in the vacuum cavity relates to the starting frequency of a vacuum pump and the water replenishing capacity of the water pump, the distance between the two contacts is far, although the water replenishing capacity is large, the larger the vacuum degree in the vacuum cavity is when the floating ball reaches the first contact, the higher the air leakage rate of the device is, the more energy is required to be provided for maintaining the vacuum degree, the closer the two contacts are, the water replenishing capacity is smaller, the device is not suitable for towing the water pumps with more quantity, the proper inserting depth of the adjusting pipe is selected according to actual conditions during specific use, subsequent adjustments can also be made easily.
Preferably, the evacuation tube comprises a flexible connecting tube, and the flexible connecting tube is connected with the top end of the adjusting tube.
When the adjusting pipe is inserted into the vacuum pump, the height of the upper end of the adjusting pipe can be changed, so that the end part of the vacuum pump connected with the adjusting pipe is provided with a section of flexible connecting pipe, the pipeline can be changed into flexible, otherwise, the adjusting pipe can be adjusted to move only by arranging corresponding telescopic slipknots if the adjusting pipe is a rigid pipeline.
Preferably, the suction valve is an electric valve, and the suction valve and a power circuit of the water pump are controlled in an interlocking manner. The control logic of the interlock control is as described above, namely: when the water pump is started, the suction valve is closed; when the water pump is stopped, the suction valve is opened. The control logic can realize automatic control of the suction valve, and the corresponding suction valve is not required to be manually opened or closed when the water pump is started or stopped every time.
Preferably, the lower surface of the partition plate is provided with a baffle, the bottom of the baffle is lower than the bottom of a pipe orifice of the exhaust pipe connected with the steam-water separation cavity, and the baffle is positioned between the exhaust pipe and the air outlet pipe. The exhaust of the vacuum pump is led to go forward in a zigzag manner in the steam-water separation cavity, so that the separation effect is improved.
As optimization, a water replenishing pipe is further arranged on the side wall of the steam-water separation cavity and is connected with the tank body through a ball float valve; the bottom of the steam-water separation cavity is also provided with an emptying pipe outwards, and the emptying pipe is provided with a stop valve.
Working fluid cyclic utilization, certainly, still have a small amount of steam and flow out from the outlet duct, the water level in the steam-water separation chamber slowly descends, when descending to a certain degree, and the external moisturizing to the steam-water separation intracavity through the moisturizing pipe, the liquid level is discerned to the ball-cock assembly.
The emptying pipe is used for emptying the tank body during maintenance.
Preferably, the connection thread of the outer pipe thread and the tank body is a sealing pipe thread, and the thread is twisted with a raw material belt. The sealing performance of the tank body at the joint of the adjusting pipe is improved by the sealing pipe threads and the raw material belt.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the water replenishing tank is used as the guarantee of the starting condition of the water pump, in the shutdown process of the water pump, the water in the water replenishing tank flows back to the pump cavity of the water pump to make up for the loss of water stored in the pump cavity caused by trace air leakage of a pipeline, and as long as water exists in the water replenishing tank, the water pump can be always in the starting condition and can be started by electrifying without the water filling operation before starting; the liquid level range of the water stored in the water replenishing tank can be conveniently set through the adjusting pipe, the upper contact and the lower contact provide switching signals of the vacuum pump, and the proper water storage capacity of the water replenishing tank is selected according to the number of the water pumps carried by the water replenishing device; in the steam-water separation effect integration water tank that vacuum pump operation needs, device overall structure is succinct.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
FIG. 1 is a schematic overall flow diagram of the present invention;
FIG. 2 is an internal structure view of the water replenishing tank of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
fig. 4 is an enlarged view of the area B in fig. 2.
In the figure: 1-water supplementing tank, 10-tank body, 11-partition plate, 12-vacuum chamber, 13-steam-water separation chamber, 14-elevation adjusting component, 141-adjusting pipe, 1411-throat, 1412-first contact, 1413-air pumping hole, 1414-outer pipe thread, 142-bottom pipe, 1421-second contact, 1422-liquid inlet hole, 143-floating ball, 15-air outlet pipe, 16-baffle, 2-vacuum pump, 31-upper suction pipe, 32-air pumping pipe, 321-flexible connecting pipe, 33-exhaust pipe, 34-water return pipe, 35-water supplementing pipe, 36-vent pipe, 41-upper suction valve, 42-vacuum check valve, 91-water pump, 92-upper water pipe, 93-drain pipe and 94-outlet valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, a pump station is started and is used vacuum steady voltage moisturizing device, connect pump station water pump 9, vacuum steady voltage moisturizing device includes moisturizing jar 1, vacuum pump 2, inhale upper hose 31, manage 32 evacuates, inhale upper hose 31 one end and connect moisturizing jar 1, one end is connected water pump 91, the moisturizing jar 1 is connected to pipe 32 one end, vacuum pump 2 is connected to one end, the position that connects evacuation pipe 32 on moisturizing jar 1 is higher than its position of connecting and inhaling upper hose 31, it inhales upper hose 31 and sets up and inhales upper hose 41, it sets up vacuum check valve 42 to manage 32, vacuum check valve 42 direction is from moisturizing jar 1 to vacuum pump 2.
The water pump 9 of the pump station is generally a high-flow pump and generally does not have a self-suction function, and one of the starting conditions of the pump is that water exists at the impeller part, so that the impeller rotates after the pump is started to play a role in pumping water and delivering water. The pump station is used for pumping water with a lower water level to a water area with a higher water level, for example, pumping water in the Yangtze river to an inland river so as to flow to water using places such as farmlands, river water with a lower water level enters a water pool after being filtered by a fence, and a water pump 9 of the pump station pumps the water in the water pool to a high place or a remote place.
The invention uses a water supplementing tank 1 as a buffer tank, when a pump station water pump 9 does not operate, an outlet valve 94 on a drain pipe 93 of the water supplementing tank is out of a closing device, a vacuum pump 2 pumps air in the water supplementing tank 1, because the water supplementing tank 1 is also connected with the water pump 9, air in a pump cavity can be pumped out together, vacuum is formed in the pump cavity, water in a water tank rises from a water inlet pipe of the water pump 9 to enter the pump cavity and submerge an impeller, the starting condition of the pump is reached, and the water pump 9 can be started at any time after the starting condition is met. The suction pipe 31 is connected with the highest position of the pump cavity of the water pump 9, so that air in the pump cavity can be completely pumped out, no air area exists to influence the operation of the water pump 9, the suction valve 41 on the suction pipe 31 should be closed when the water pump 9 is started or immediately before the water pump is started, otherwise, high-pressure water in the pump cavity enters the water replenishing tank 1 through the suction pipe 31 in a large amount after the water pump 9 is started. The vacuum pump 2 operates to pump the gas in the water replenishing tank 1 to generate vacuum, and during pumping, certain water is required to be stored in the water replenishing tank 1 but the water cannot be stored fully. If water exists in the part connected with the water pump 9 in the water replenishing tank 1, the water pump 9 is always in a starting state as long as the water exists in the part connected with the water pump 9 in the water replenishing tank 1.
After the water pump 9 is operated, the outlet valve 94 on the water discharge pipe 93 is closed, the inlet and outlet pipelines of the water pump are all sealed by liquid, and under an ideal state (all pipelines are not leaked), the water in the pump cavity cannot flow back to the water pool because no air area fills the pump cavity. However, in reality, there will always be a leakage point, the water in the pump cavity of the water pump 9 and the inlet and outlet pipelines will slowly fall back into the water tank, and the water remaining in the water replenishing tank 1 will also flow back into the pump cavity to compensate for water loss caused by air leakage, so long as the water in the water replenishing tank 1 is not drained, the water pump 9 is still in a state that can be started, when the water level in the water replenishing tank 1 falls to the bottom, the vacuum pump 2 should be started at this time, a large vacuum degree is established in the water replenishing tank 1 again, some water is sucked up and stored again, the water level range of the connection part between the water replenishing tank 1 and the water pump 9 can be established by means of a liquid level switch and the like, the vacuum pump 2 is started at a low liquid level.
As shown in figure 1, a set of pressure-stabilizing water supplementing device can drag a plurality of water pumps 9 with different height positions, the suction pipes 31 connecting each water pump 9 are respectively provided with a suction valve 41, the suction valve corresponding to the pump is closed when one pump is started, the water supplementing tank 1 is opened in parallel when the pump is stopped, and the water-guiding and pressure-stabilizing processes are mutually independent.
As shown in fig. 1 and 2, the vacuum pump 2 is a water ring vacuum pump, the water replenishing tank 1 comprises a tank body 10, a partition plate 11 and an air outlet pipe 15, the partition plate 11 is arranged in the tank body 10, and the tank body 10 is divided into two chambers by the partition plate 11: the vacuum pump comprises an upper vacuum cavity 12 and a lower steam-water separation cavity 13, wherein a suction pipe 31 is connected with the bottom of the vacuum cavity 12, an evacuation pipe 32 is connected with the top of the vacuum cavity 12, an air inlet of a vacuum pump 2 is connected with the evacuation pipe 32, an air outlet of the vacuum pump 2 is connected with the upper part of the steam-water separation cavity 13 through an exhaust pipe 33, a pump body water replenishing port of the vacuum pump 2 is connected with the lower part of the steam-water separation cavity 13 through a water return pipe 34, and the top of the steam.
The water ring vacuum pump has the characteristics of large gas flow, high operation efficiency and reliable operation under the rough vacuum working condition, and does not need special operation conditions such as a dry vacuum pump, a screw pump and the like to stably operate.
When the water ring vacuum pump operates, water is used as working fluid, a steam-water separator is required to be connected to an exhaust port of the water ring vacuum pump, otherwise, a large amount of water vapor is exhausted to the surrounding environment if the water vapor is directly exhausted to the atmosphere, the humidity is obviously increased, and the operation of surrounding machines and devices is not facilitated. In the invention, a steam-water separator is arranged in a water supplementing tank 1: namely the steam-water separation cavity 13 in the water replenishing tank 1, the gas containing a large amount of water vapor discharged from the vacuum pump 2 is separated in the steam-water separation cavity 13, the gas is discharged out of the device from the gas outlet pipe 15, water remains in the steam-water separation cavity 13, the water ring vacuum pump needs to replenish water during operation, and the water replenishing source is water in the steam-water separation cavity 13.
As shown in fig. 2 and 3, the water replenishing tank 1 further comprises an elevation adjusting assembly 14, the elevation adjusting assembly 14 is arranged in the vacuum chamber 12, and the elevation adjusting assembly 14 comprises an adjusting pipe 141, a bottom pipe 142 and a floating ball 143;
a threaded connection pipe seat is arranged on the tank body 10, a section of outer pipe thread 1414 is arranged on the outer surface of the adjusting pipe 141, the adjusting pipe 141 is connected with the tank body 10 through the outer pipe thread 1414, one end of the adjusting pipe 141 is vertically inserted into the vacuum cavity 12, the other end of the adjusting pipe is connected with the evacuation pipe 32, a throat 1411 is arranged in the middle of the inside of the adjusting pipe 141, the throat 1411 is positioned below the outer pipe thread 1414, and an exhaust hole 1413 is further arranged on the side surface of the pipe body between the throat 1411 and the outer pipe thread 1414;
the bottom tube 142 is vertically connected to the upper surface of the partition 11, the upper end of the bottom tube 142 is open, a liquid inlet hole 1422 is further formed in the side face of the bottom tube 142, the lower end of the adjusting tube 141 is inserted into the bottom tube 142, the floating ball 143 is placed in the adjusting tube 141 or the bottom tube 142 and floats up and down along the axial direction of the adjusting tube 141, two limit positions of the floating ball 143 floating up and down are the throat 1411 and the bottom of the bottom tube 142 respectively, a first contact 1412 is arranged on the tube wall at the throat 1411, a second contact 1421 is arranged at the bottom of the bottom tube 142, and a switching value signal is given when the first contact 1412 or the second contact 1421.
The vacuum pump 2 is operated to pump air from the vacuum cavity 12, the liquid level in the vacuum cavity 12 slowly rises, water enters the two pipes from a gap at the joint of the liquid inlet 1422 and the regulating pipe 141 and the bottom pipe 142, so that the floating ball 143 floats upwards, the floating ball 143 floats upwards to the throat 1411 and cannot rise any more, and collides with the first contact 1412, the first contact 1412 gives a switching value signal to stop the vacuum pump 2, when the water level in the vacuum cavity 12 falls, the floating ball 143 also moves downwards, and when the water level in the vacuum cavity 12 falls, the floating ball collides with the second contact 1421, the second contact 1421 gives a switching value signal to control the vacuum pump 2 to start to pump air, and the water level in the vacuum cavity 12 continues to rise. The two contacts on the adjusting pipe 141 and the bottom pipe 142 are used as two liquid level switches, and the adjusting pipe 141 is screwed on the tank 10, so the upper first contact 1411 can move up and down along with the adjusting pipe 141, further conveniently change the distance between the two contacts, change the liquid level adjusting range in the vacuum chamber 12, the liquid level adjusting range in the vacuum chamber 12 relates to the starting frequency of the vacuum pump, the water replenishing capacity of the water pump 9, the distance between the two contacts is far, although the water replenishing capacity is large, the larger the vacuum degree in the vacuum chamber 12 when the floating ball reaches the first contact 1411, the higher the air leakage rate of the device, the more the energy required for maintaining the vacuum degree, the closer the two contacts are, the smaller the water replenishing capacity is, the device is not suitable for towing the water pump 9 with more quantity, and the proper inserting depth of the adjusting pipe 141 should be selected according to the actual situation when in, of course, subsequent adjustments can also be made easily if the settings are not appropriate.
As shown in fig. 1, the evacuation tube 32 includes a flexible connection tube 321, and the flexible connection tube 321 is connected to the top end of the adjustment tube 141.
Because the height of the upper end of the adjusting pipe 141 changes when the insertion depth of the adjusting pipe 141 is adjusted, the flexible connecting pipe 321 arranged at the end part of the evacuation pipe 32 connected with the adjusting pipe 141 can make the pipeline flexible, otherwise, the flexible connecting pipe is a rigid pipeline and needs to be provided with a corresponding telescopic slipknot to adapt to the movement adjustment of the adjusting pipe 141.
The suction valve 41 is an electrically operated valve, and the suction valve 41 is interlocked with a power supply circuit of the water pump 9. The control logic of the interlock control is as described above, namely: when the water pump 9 is started, the suck-up valve 41 is closed; when the water pump 9 is stopped, the suck-up valve 41 is opened. This control logic allows the suck-up valve 41 to be automatically controlled without the need to manually switch the corresponding suck-up valve 41 each time the water pump 9 is turned on and off.
As shown in fig. 2 and 4, a baffle 16 is arranged on the lower surface of the partition plate 11, the bottom of the baffle 16 is lower than the bottom of the pipe orifice of the exhaust pipe 33 connected with the steam-water separation chamber 13, and the baffle 16 is positioned between the exhaust pipe 33 and the air outlet pipe 15. The exhaust gas of the vacuum pump 2 is bent and advances in the steam-water separation cavity 13, and the separation effect is increased.
As shown in fig. 2, a water replenishing pipe 35 is further arranged on the side wall of the steam-water separation cavity 13, and the water replenishing pipe 35 is connected with the tank body 10 through a ball float valve; and the bottom of the steam-water separation cavity 13 is also provided with an emptying pipe 36 outwards, and the emptying pipe 36 is provided with a stop valve.
Working fluid cyclic utilization, certainly, still have a small amount of steam and flow out from outlet duct 15, the water level in steam-water separation chamber 13 slowly descends, when descending to certain degree, and the external world is to moisturizing in steam-water separation chamber 13 through moisturizing pipe 35, and the liquid level is discerned to the ball-cock assembly.
The emptying pipe 36 is used for emptying the tank body 10 during maintenance.
The connection thread of the outer pipe thread 1414 and the tank body 10 is a sealing pipe thread, and a raw material tape is twisted on the thread. The sealing tube threads and the raw material tape improve the sealing performance of the can body 10 at the joint of the adjusting tube 141.
The use process of the device is as follows: when debugging for the first time: the vacuum pump 2, the water pump 9 and the water replenishing tank 1 are all anhydrous, when the water replenishing tank is started for the first time, water is replenished into the steam-water separation cavity 35 through the water replenishing pipe 35 from the outside, water in the cavity flows into the vacuum pump 2 to serve as working liquid, then the floating ball 143 is in contact with the second contact 1421 due to the fact that no water exists in the vacuum cavity 12, an operation signal of the vacuum pump 2 is given, the vacuum pump 2 operates to extract air in the vacuum cavity 12, the vacuum cavity 12 is connected with the pump cavity of the water pump 9, the air in the pump cavity of the water pump 9 is also extracted together, water in the water tank enters the pump cavity of the water pump 9 through the water feeding pipe 92 and then continues to the vacuum cavity 12, the floating ball 143 floats upwards to. As long as water is stored in the vacuum cavity 12, the water pump 9 also has water in the pump cavity, and the water pump 9 is always in a starting state. When the water pump 9 is started, the corresponding suction valve 41 is closed, and when the water pump 9 is stopped, the suction valve 41 is opened again. After the first operation, the water pump 9 is always in a state of being capable of being started quickly.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides a pump station starts with vacuum steady voltage moisturizing device, connects pump station water pump (91), its characterized in that: the vacuum pressure-stabilizing water replenishing device comprises a water replenishing tank (1), a vacuum pump (2), an upper suction pipe (31) and an evacuation pipe (32), wherein one end of the upper suction pipe (31) is connected with the water replenishing tank (1), and the other end of the upper suction pipe (31) is connected with a water pump (91), one end of the evacuation pipe (32) is connected with the water replenishing tank (1), and the other end of the evacuation pipe (32) is connected with the vacuum pump (2), the position of the upper suction pipe (32) connected with the water replenishing tank (1) is higher than the position of the upper suction pipe (31), the upper suction pipe (31) is provided with an upper suction valve (41), the evacuation pipe (32) is provided with a vacuum check valve (42), and the direction of the vacuum check valve (;
vacuum pump (2) are water ring vacuum pump, moisturizing jar (1) is including jar body (10), baffle (11) and outlet duct (15), baffle (11) set up in jar body (10), and baffle (11) are separated jar body (10) for two cavities: the vacuum pump comprises an upper vacuum chamber (12) and a lower steam-water separation chamber (13), wherein a suction pipe (31) is connected with the bottom of the vacuum chamber (12), an evacuation pipe (32) is connected with the top of the vacuum chamber (12), an air inlet of a vacuum pump (2) is connected with the evacuation pipe (32), an air outlet of the vacuum pump (2) is connected with the upper part of the steam-water separation chamber (13) through an exhaust pipe (33), a pump body water replenishing port of the vacuum pump (2) is connected with the lower part of the steam-water separation chamber (13) through a water return pipe (34), and the top of the steam-water separation chamber (13) is connected with the external atmosphere;
the water replenishing tank (1) further comprises an elevation adjusting assembly (14), the elevation adjusting assembly (14) is arranged in the vacuum cavity (12), the elevation adjusting assembly (14) comprises an adjusting pipe (141), a bottom pipe (142) and a floating ball (143),
the tank body (10) is provided with a threaded connecting pipe seat, a section of outer pipe thread (1414) is arranged on the outer surface of the adjusting pipe (141), the adjusting pipe (141) is connected with the tank body (10) through the outer pipe thread (1414), one end of the adjusting pipe (141) is vertically inserted into the vacuum cavity (12), the other end of the adjusting pipe (141) is connected with the evacuation pipe (32), the middle part in the adjusting pipe (141) is provided with a throat (1411), the throat (1411) is positioned below the outer pipe thread (1414), and the side surface of the tank body between the throat (1411) and the outer pipe thread (1414) is also provided with an evacuation hole (1413);
the bottom pipe (142) is vertically connected to the upper surface of the partition board (11), the upper end of the bottom pipe (142) is open, a liquid inlet hole (1422) is further formed in the side face of the bottom pipe (142), the lower end of the adjusting pipe (141) is inserted into the bottom pipe (142), the floating ball (143) is placed in the adjusting pipe (141) or the bottom pipe (142) and floats up and down along the axial direction of the adjusting pipe (141), two limit positions of the floating ball (143) floating up and down are respectively the bottom of the throat (1411) and the bottom of the bottom pipe (142), a first contact (1412) is arranged on the pipe wall at the throat (1411), a second contact (1421) is arranged at the bottom of the bottom pipe (142), and a switching value signal is given when the first contact (1412) or the second contact (1421) is contacted with the floating;
the suction valve (41) is an electric valve, and the suction valve (41) and a power circuit of the water pump (91) are controlled in an interlocking manner.
2. The pump station starts with vacuum steady voltage moisturizing device according to claim 1, characterized in that: the evacuation tube (32) comprises a section of flexible connection tube (321), and the flexible connection tube (321) is connected with the top end of the adjusting tube (141).
3. The pump station starts with vacuum steady voltage moisturizing device according to claim 1, characterized in that: the outer pipe thread (1414) and the tank body (10) are connected by a sealing pipe thread, and a raw material belt is twisted on the thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010382309.7A CN111720335B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800237.0A CN110425148B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
| CN202010382309.7A CN111720335B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910800237.0A Division CN110425148B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
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| Publication Number | Publication Date |
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| CN111720335A CN111720335A (en) | 2020-09-29 |
| CN111720335B true CN111720335B (en) | 2021-07-13 |
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| CN202010382309.7A Active CN111720335B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
| CN202010382982.0A Active CN111720336B (en) | 2019-08-28 | 2019-08-28 | Vacuum pressure-stabilizing water replenishing device for starting pump station |
| CN201910800237.0A Active CN110425148B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010382982.0A Active CN111720336B (en) | 2019-08-28 | 2019-08-28 | Vacuum pressure-stabilizing water replenishing device for starting pump station |
| CN201910800237.0A Active CN110425148B (en) | 2019-08-28 | 2019-08-28 | Pump station starts with vacuum steady voltage moisturizing device |
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| CN112112810A (en) * | 2020-07-31 | 2020-12-22 | 辽宁三三工业有限公司 | Pump priming system and method of centrifugal pump system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3713621B2 (en) * | 2000-11-06 | 2005-11-09 | 株式会社電業社機械製作所 | Horizontal shaft pump |
| CN201963512U (en) * | 2010-12-22 | 2011-09-07 | 上海连成（集团）有限公司 | Novel integrated type vacuum water guide tank |
| CN103541910A (en) * | 2012-07-12 | 2014-01-29 | 赵旭阳 | Self-sucking pump |
| CN105201862A (en) * | 2014-06-23 | 2015-12-30 | 中国人民解放军总后勤部油料研究所 | Automatic liquid pouring device of liquid transfer pump |
| CN205638956U (en) * | 2016-02-03 | 2016-10-12 | 山东双轮埃姆科泵业有限公司 | Compact vacuum drinking device |
| CN206144787U (en) * | 2016-08-31 | 2017-05-03 | 江苏华电吴江热电有限公司 | Water ring vacuum pump's water charging system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202182053U (en) * | 2011-08-04 | 2012-04-04 | 博山精工泵业有限公司 | Improved front-mount type gas-water separator of water ring vacuum pump controlled by solenoid valve |
| CN204677456U (en) * | 2015-06-09 | 2015-09-30 | 唐立春 | Circulating cooling self priming centrifugal pump |
| CN206338199U (en) * | 2016-12-13 | 2017-07-18 | 河北爱节水泵科技有限公司 | A kind of energy saving water supply pump |
-
2019
- 2019-08-28 CN CN202010382309.7A patent/CN111720335B/en active Active
- 2019-08-28 CN CN202010382982.0A patent/CN111720336B/en active Active
- 2019-08-28 CN CN201910800237.0A patent/CN110425148B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3713621B2 (en) * | 2000-11-06 | 2005-11-09 | 株式会社電業社機械製作所 | Horizontal shaft pump |
| CN201963512U (en) * | 2010-12-22 | 2011-09-07 | 上海连成（集团）有限公司 | Novel integrated type vacuum water guide tank |
| CN103541910A (en) * | 2012-07-12 | 2014-01-29 | 赵旭阳 | Self-sucking pump |
| CN105201862A (en) * | 2014-06-23 | 2015-12-30 | 中国人民解放军总后勤部油料研究所 | Automatic liquid pouring device of liquid transfer pump |
| CN205638956U (en) * | 2016-02-03 | 2016-10-12 | 山东双轮埃姆科泵业有限公司 | Compact vacuum drinking device |
| CN206144787U (en) * | 2016-08-31 | 2017-05-03 | 江苏华电吴江热电有限公司 | Water ring vacuum pump's water charging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110425148B (en) | 2020-06-12 |
| CN111720336A (en) | 2020-09-29 |
| CN110425148A (en) | 2019-11-08 |
| CN111720336B (en) | 2021-12-14 |
| CN111720335A (en) | 2020-09-29 |
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Effective date of registration: 20230816 Address after: Room 1264, No.1 Chuangye Road, Changkou Town, Fuyang District, Hangzhou City, Zhejiang Province, 310000 Patentee after: ZHEJIANG NANFANG INTELLIGENT WATER CO.,LTD. Address before: Room 516, building 3, Xiangti Business Plaza, high tech Zone, Suzhou, Jiangsu 215000 Patentee before: Suzhou Wigner Information Technology Co.,Ltd. |