CN114962844B - Energy storage device for high-viscosity medium and use method thereof - Google Patents
Energy storage device for high-viscosity medium and use method thereof Download PDFInfo
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- CN114962844B CN114962844B CN202210449039.6A CN202210449039A CN114962844B CN 114962844 B CN114962844 B CN 114962844B CN 202210449039 A CN202210449039 A CN 202210449039A CN 114962844 B CN114962844 B CN 114962844B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- General Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the technical field of new energy automobiles, and particularly discloses an energy storage device for a high-viscosity medium, which comprises a pressure regulator and a cylinder body, wherein a piston is connected to the cylinder body in a sliding way, the pressure regulator is used for applying external force to the piston, a communication channel is arranged between the cylinder body and a main flow channel, a cavity between the piston in the cylinder body and the communication channel is called as a first cavity, the communication channel comprises an inlet channel and an outlet channel which are communicated with the main flow channel, the first cavity is always communicated with the inlet channel and the outlet channel at the same time, one of the inlet channel and the outlet channel is connected to one side wall of the first cavity, and the other one of the inlet channel and the outlet channel is connected to the bottom of the first cavity; the inlet and outlet channels are provided with one-way valves so that medium can only flow into the first chamber from the inlet channel and can only flow out of the first chamber from the outlet channel. The gluing system pressure reducing valve is used for solving the problems that the replacement cost is high, the existing energy accumulator cannot be applied to the pressure stabilizing working condition of the high-viscosity heat-conducting glue supply system when the gluing system pressure reducing valve is damaged in the prior art.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to an energy storage device for a high-viscosity medium and a use method thereof.
Background
With the popularization of new energy automobiles, the yield and sales of electric automobiles in the new energy automobiles are rapidly improved, and a battery is one of three key components of the electric automobiles, wherein the battery temperature control is an important guarantee for ensuring the safe operation of the battery; in the prior art, the battery core, the module and the battery assembly of the battery are coated with heat conducting glue, and the temperature control of the battery is realized by combining a water cooling mode. Therefore, the coating of the heat-conducting glue is an important process for the production of electric automobiles.
The conventional heat-conducting glue coating system is generally composed of a glue supply pump, a high-pressure rubber pipe, a pressure reducing valve, a quantifying device (such as a booster pump, a quantifying cylinder and the like), a glue gun and a mixing pipe, when the heat-conducting glue coating system is used, high-viscosity mediums (such as heat-conducting glue or components of the heat-conducting glue) are continuously pumped out through the glue supply pump at high pressure, and are decompressed through the pressure reducing valve, so that the high-viscosity mediums output by the pressure reducing valve are stabilized within a pressure range allowed by the quantifying device when the quantifying device works, then the quantifying device sends received mediums into the glue gun, and the glue gun stirs and extrudes the received one or more high-viscosity mediums to realize extrusion coating. The heat conducting glue with high-viscosity medium needs to pass through four instruments before extrusion coating, so that the conveying path is longer, but the heat conducting glue has high-viscosity property and contains a large amount of particles with strong abrasiveness, so that the pressure loss is larger in the whole conveying process, the output pressure of the pressure supply pump is required to be larger, and the equipment requirement on the pressure supply pump is increased; on the other hand, the abrasive particles contained in the high-viscosity medium have influence on various devices, particularly for the pressure reducing valve which needs to perform pressure reducing action, the pressure reducing valve is required to bear unstable medium pressure of the glue supply pump (trough pressure occurs when the glue supply pump supplies glue, the trough pressure is much lower than the common output pressure), and also is required to bear abrasion of the medium on the pressure reducing valve, so that the pressure reducing valve is frequently in failure, the replacement cost is high, and the production efficiency is influenced by the replacement process; in addition, in practical application, the extrusion coating process is intermittent, one area/product is extruded, the extrusion coating is suspended, and the other area/product is extruded, so that the extrusion coating is suspended by the spray gun and the quantitative equipment only when the extrusion coating is suspended because the extrusion coating interval time is short and the conveying path of the high-viscosity medium is long and the pressure loss is large, so that the normal starting of the next extrusion coating is ensured; however, other problems are also caused, such as when the metering device is in a pause state, the pressure reducing valve and the glue supply pump are always started, the pressure of the pressure reducing valve is far beyond the normal working pressure before the metering device is started, the output end of the pressure reducing valve is rapidly decompressed when the pressure reducing valve works, the output pressure of the pressure reducing valve at the moment can be temporarily close to the maximum inlet working pressure of the metering device, after the metering device is operated for a period of time, the glue supply pump has trough pressure due to long medium conveying path, so that the output pressure of the pressure reducing valve is basically at the minimum working pressure of the metering device, and in actual use, the metering device can not completely meet the normal working requirement of the metering device when the metering device is at the minimum working pressure, so that the extrusion coating quality of a subsequent spray gun is degraded. The gluing system of the heat-conducting glue has high overall cost, poor reliability of long-period operation and easily influenced production efficiency, and becomes a bottleneck in battery production.
In order to solve the above problems, the inventor starts from the requirement that the quantitative device needs to be stabilized, and refers to a stabilizing structure in the prior art, such as an energy accumulator installed on a main flow channel between a glue supply pump and the device needing to stabilize the inlet pressure, wherein the energy accumulator mainly plays a role in stabilizing the outlet pressure of the main flow channel so as to ensure that the device connected with the outlet of the main flow channel and needing to stabilize the inlet pressure ensures that the device needing to stabilize the inlet pressure has stable inlet pressure. The types of the existing energy accumulator are basically classified into three types of leather bag type, diaphragm type and piston type energy accumulators, and the leather bag type and the diaphragm type energy accumulator have the advantages of sensitive reaction and simple structure, but cannot be used for high-viscosity media due to material limitation and working condition limitation. The piston type energy accumulator has the advantages that the service life is long, the piston type energy accumulator can be used for common high-viscosity media, the piston type energy accumulator comprises a piston cylinder, a piston slides in the piston cylinder, a connecting channel is arranged on the piston cylinder and is communicated with a main flow channel, when the outlet pressure of the main flow channel is too high, the piston is far away from the main flow channel, so that the flowing media in the main flow channel enter the connecting channel or enter the piston cylinder along the connecting channel, and the outlet pressure of the main flow channel is reduced; when the outlet pressure of the main flow passage is too low, the piston is close to the main flow passage so as to extrude the connecting passage or the connecting passage and the medium left in the piston cylinder into the main flow passage through the connecting passage, thereby increasing the outlet pressure of the main flow passage.
However, when the existing piston accumulator is used for stabilizing pressure of high-viscosity medium, the medium in the communication channel or the piston cylinder needs to be discharged finally, so that old glue is inevitably left in the communication channel or the piston cylinder, the old glue stays for a long time easily to cause caking phenomenon, and in order to avoid the problem, the problem that caking is reduced for the scheme that the communication channel and/or the piston cylinder wraps a heating structure to increase the fluidity of the medium exists in the field; however, in the case of a higher viscosity medium, such as a heat-conducting adhesive, the viscosity of the heat-conducting adhesive is relatively higher than that of the heat-conducting adhesive, and the caking phenomenon still exists under the condition of no flow for a long time due to the material composition, however, if the piston type energy accumulator is used on a gluing system of the heat-conducting adhesive, once caking occurs, the blocky substance enters into a dosing device or a spray gun to cause the blockage of the dosing device or the glue gun, so that the squeezing and coating work must be completely suspended to find the reason and the blocked pipeline position, the squeezing and coating work is seriously influenced, and the cost caused by the blockage is far higher than that caused by using a pressure reducing valve, so that in practical application, the existing energy accumulator scheme cannot be applied to the high-viscosity gluing system.
Disclosure of Invention
The invention aims to provide an energy storage device for a high-viscosity medium, which solves the problems that the replacement cost is high when a pressure reducing valve of a gluing system in the prior art is easy to damage, and the existing energy storage device cannot be applied to the pressure stabilizing working condition of a high-viscosity heat-conducting glue supply system.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the energy storage device for the high-viscosity medium comprises a pressure regulator and a cylinder body, wherein the cylinder body is connected with a piston in a sliding manner, the pressure regulator is used for applying external force to the piston, a communication channel is arranged between the cylinder body and a main flow channel, a cavity between the piston in the cylinder body and the communication channel is called as a first cavity, the communication channel comprises an inlet channel and an outlet channel which are both communicated with the main flow channel, the first cavity is always communicated with the inlet channel and the outlet channel at the same time, one of the inlet channel and the outlet channel is connected to one side wall of the first cavity, and the other one of the inlet channel and the outlet channel is connected to the bottom of the first cavity; the inlet and outlet channels are provided with one-way valves so that medium can only flow into the first chamber from the inlet channel and can only flow out of the first chamber from the outlet channel.
The principle and the advantages of the scheme are as follows: when the energy storage device is used, the stroke of the bottom of the piston is between the inlet channel and the outlet channel 4, the energy storage device is mainly divided into four working states of a filling state, a filling stop state, a discharging state and a discharging stop state when in work, when in the filling state, namely when the outlet pressure of the main channel is too high, the main channel, the inlet channel, the first chamber and the outlet channel are communicated all the time, the upstream pressure borne by the check valve in the inlet channel is higher than the downstream pressure and is opened, the check valve on the outlet channel is closed because the upstream pressure is lower than the downstream pressure, high-viscosity medium can enter the first chamber from the main channel through the inlet channel and the check valve, so that filling of the medium in the cylinder body is realized, if the inlet channel is arranged on the side wall of the first chamber, and the medium entering the first chamber is pushed to the position of the outlet channel far away from the inlet channel along with continuous entering of the medium; if the inlet channel is arranged at the bottom of the first chamber, the medium with excessive high pressure from the main channel enters the first chamber through the inlet channel and the one-way valve, and the medium entering the first chamber continuously pushes the piston to move towards the direction of the outlet channel, so that the medium entering the first chamber is also close to the outlet channel; along with the filling entering the final stage, the speed of the piston pushed by the medium is slower and slower until the piston completely stops moving, at the moment, the pressure of the downstream of the one-way valve in the inlet channel is gradually increased to be close to the pressure of the main channel, the one-way valve on the inlet channel is closed, the filling process is completed, and at the moment, the energy storage device is in a filling completion state.
When the outlet pressure of the main channel is lower, the upstream pressure borne by the check valve on the inlet channel is lower than the downstream pressure and is closed, the upstream pressure borne by the check valve on the outlet channel is higher than the downstream pressure and is opened, and the medium is extruded and discharged from the cylinder body by the piston, so that the medium in the cylinder body is in a discharging state, and the medium in the cylinder body is firstly near the outlet channel when the medium is filled, so that the medium closest to the outlet channel (i.e. the medium preferentially entering the cylinder body) is preferentially discharged in the discharging state; when the discharging enters the final state, the moving speed of the piston is also reduced, the upstream pressure of the one-way valve in the outlet channel is gradually close to the downstream main channel pressure, and the one-way valve on the outlet channel is gradually closed to complete the discharging process, so that the discharging is stopped.
According to the energy storage device, the medium which enters preferentially is discharged preferentially, the outlet pressure of the glue supply pump connected with the energy storage device is a process of continuously alternating the ordinary pressure and the trough pressure, the ordinary pressure means that the pressure of the main runner is too high, and the trough pressure means that the pressure of the main runner is too low, and the outlet pressure of the main runner is always stable under the action of the energy storage device; meanwhile, because the outlet pressure of the main runner is alternately high and low, namely the four states of the energy storage device are continuously circulated, the high-viscosity medium entering the energy storage device can be discharged in a first-in first-out mode rapidly, the high-viscosity medium left in the energy storage device is avoided, the energy storage device is prevented from caking, and the problem that the existing energy storage device cannot be applied to the voltage stabilization of the high-viscosity medium similar to the heat conducting glue is solved.
In addition, the energy storage device can replace a pressure reducing valve to be used in a gluing system of high-viscosity medium similar to heat-conducting glue, so that the output pressure of the glue supply pump is greatly reduced, the requirement on the glue supply pump is reduced, the purchasing cost and the maintenance cost of the glue supply pump are reduced, the service life of the glue supply pump is prolonged, and meanwhile, the long-term reliable operation of the gluing system is promoted; and this scheme does not need to use the relief pressure valve, and then has avoided the problem of bringing the unplanned shutdown when high and the change of replacement cost because of using the relief pressure valve completely, is favorable to improving production efficiency and improves the long-period operational reliability of rubber coating system.
In addition, due to the use of the energy storage device, even if the extrusion coating is stopped briefly, high-viscosity medium with higher pressure, which is conveyed by the glue supply pump, enters the first chamber of the energy storage device to store energy, and when the inlet pressure of the quantitative equipment is insufficient for a period of time during the extrusion coating, the pressure compensation can be provided for the inlet pressure of the quantitative equipment in time, so that the problem of poor extrusion coating effect caused by the change of the inlet pressure of the quantitative equipment is avoided.
Besides, when the pressure stabilizing range of the outlet pressure of the main runner is required to be regulated through the energy storage device, the pressure stabilizing range of the energy storage device can be regulated through regulating the external force applied by the pressure regulator on the piston, so that the purpose of regulating the outlet pressure of the main runner is achieved, the practicability of the scheme is improved, for example, if the energy storage device is required to play a role of a buffer tank on the basis of the existing pressure stabilizing effect, more medium is filled in the energy storage device, the acting force of the pressure regulator on the piston is reduced at the moment, so that the piston is more easily pushed by the medium, and more medium in the energy storage device is realized.
Preferably, as a modification, the junction of the inlet channel and the main flow channel is located upstream of the junction of the outlet channel and the main flow channel.
The beneficial effects are that: according to the scheme, the inlet channel is closer to the input end of the main flow channel, and the outlet channel is closer to the output end of the main flow channel, so that when the pressure of the main flow channel is too high, the main flow channel can start to relieve pressure at a position close to the input end, and the reaction speed of pressure relief is improved; when the pressure of the main runner is too low, the main runner can be pressurized at the joint of the main runner and the outlet channel, which is close to the output end, so that the reaction speed of the pressurization is improved.
Preferably, as a modification, the connection between the inlet channel and the first chamber is higher than the connection between the outlet channel and the first chamber.
The beneficial effects are that: the scheme ensures that the medium can automatically flow from high to low after entering the first chamber, improves the mobility of the medium by utilizing the self gravity of the medium, and reduces the influence of gravity on the first-in first-out principle of the medium.
Preferably, as an improvement, the piston comprises a piston body and a bulge part, wherein the piston body is positioned in the first chamber, the piston body is connected to the cylinder body in a sliding way, the cross section area of the bulge part is smaller than that of the piston body, and a communication gap is formed between the side wall of the bulge part of the piston and the cylinder body.
The beneficial effects are that: through this scheme, through the setting of the bellying that the cross-sectional area is less than the piston body for there is the intercommunication space in the cavity one between piston and the cylinder body, and then guarantees that inlet channel and outlet channel are in the intercommunication state all the time in the cavity one, guarantees that the first-in first-out principle of medium in the energy storage device is not influenced.
Preferably, as an improvement, the cylinder body is provided with a communication groove, the communication groove is communicated with the inlet channel and the first chamber, and a communication gap is formed between the side wall of the piston and the communication groove of the cylinder body.
The beneficial effects are that: when the scheme is adopted, the communicating groove is formed in the cylinder body, so that a communicating gap exists between the piston and the cylinder body, the communicating gap enables the outlet channel and the inlet channel to be always communicated, and the first-in first-out function of the energy storage device on the medium is further guaranteed.
Preferably, as an improvement, the outlet channel is connected to the bottom of the first chamber, an annular groove is arranged in the cylinder body and communicated with the inlet channel, the annular groove is communicated with the communicating gap, and the communicating gap is of a symmetrical structure.
The beneficial effects are that: according to the scheme, the inlet channel is connected to the side wall of the first chamber, the outlet channel is arranged at the bottom of the first chamber and is matched with the annular groove communicated with the inlet channel, so that media entering the inlet channel during filling can fill the annular groove first, overflows from the annular groove and moves towards the bottom of the piston along a symmetrical communication gap, and the media overflowed from the annular groove basically reach the bottom of the piston and push the piston to move at the same time, so that when the media push the piston to move, the stress of the piston is uniform, and the service life of the energy storage device is prolonged.
Preferably, as a modification, a limiting piece is arranged between a bottom of the cavity and the piston.
The beneficial effects are that: the setting of this scheme locating part for there is the clearance all the time between piston and the first bottom of cavity, makes things convenient for the medium to get into the piston bottom fast and promote the piston to remove after getting into cavity one, reduces the medium thrust that receives when the piston initially removes, is favorable to improving this energy storage device's application scope.
Preferably, as an improvement, the device further comprises a base, and the inlet channel, the outlet channel and the main runner are all arranged on the base.
The beneficial effects are that: because the conveying pressure loss of the high-viscosity medium is high, if the structure is complex and the number of parts is large, the flow speed of the medium can be greatly reduced, the conveying pressure loss of the pressurizing medium can be greatly reduced, and the parts through which the medium flows can be seriously worn for the medium with abrasiveness; the inlet channel, the outlet channel and the main runner are arranged on the base, so that the layout of the channels and the runners is more compact, the total length of the runners and the channels is shorter, the pressure loss is greatly reduced, and the equipment abrasion is reduced; in addition, this scheme simple structure, no matter cost of manufacture, installation cost and maintenance cost are all lower.
Preferably, as an improvement, the pressure regulator is an inflation unit, an end cover is fixed on the cylinder body, a closed chamber II is formed between the end cover and the piston, the chamber II and the chamber I are positioned on two sides of the piston, the inflation unit is communicated with the chamber II, a pressure testing unit is fixedly connected on the end cover, and the pressure testing unit is communicated with the chamber II.
The beneficial effects are that: according to the scheme, the pressure regulator for applying external force to the piston is arranged as the inflation unit, so that the pressure of the second chamber is convenient to adjust, and then the acting force of the piston is adjusted through the pressure adjustment, so that the structure is simple, and the adjustment is convenient.
The using method of the energy storage device for the high-viscosity medium comprises the following steps: the inlet channel and the outlet channel of the energy storage device are communicated with the main flow channel, the stroke of the bottom of the piston is between the inlet channel and the outlet channel, and when the outlet pressure of the main flow channel exceeds the preset pressure, a medium enters the first chamber through the inlet channel for filling; when the outlet pressure of the main flow channel is lower than the preset pressure, the medium is discharged from the first chamber into the main flow channel through the outlet channel.
When the method is used for the energy storage device, the energy storage device is communicated with the main channel, and the stroke of the piston is between the inlet channel and the outlet channel, so that the situation that part of medium is solidified and agglomerated in the cylinder body due to the fact that the principle of first-in first-out cannot be met after the medium is filled into the cylinder body due to the overlarge stroke of the piston is avoided.
Drawings
FIG. 1 is a schematic view of a structure of an embodiment of the present invention when an inlet channel communicates with a side wall of a chamber;
FIG. 2 is a partial front cross-sectional view of the cylinder of FIG. 1;
FIG. 3 is a schematic view of another embodiment of the present invention when the inlet channel is in communication with a side wall of the chamber;
FIG. 4 is a schematic view of the cylinder and piston of FIG. 1 disposed below the primary flowpath;
FIG. 5 is a schematic view of the structure of the inlet channel in communication with a bottom of the chamber according to the embodiment of the invention;
FIG. 6 is a partial front cross-sectional view of the cylinder of FIG. 5;
FIG. 7 is a partial front cross-sectional view of a cylinder and piston in accordance with a second embodiment of the present invention;
FIG. 8 is a schematic view of a piston with a cylindrical boss according to a second embodiment of the present invention;
FIG. 9 is a schematic diagram of a piston with a plurality of circumferential grooves in the boss of the piston according to the second embodiment of the present invention;
FIG. 10 is a schematic diagram of a third embodiment of the present invention;
FIG. 11 is a schematic view of a third embodiment of the present invention in a packed state;
FIG. 12 is a schematic view showing a structure of a third embodiment of the present invention in a completed state;
fig. 13 is a schematic structural view of a third embodiment of the present invention in a discharging state;
fig. 14 is a schematic structural view of a third embodiment of the present invention in a discharging completion state;
FIG. 15 is a partial front cross-sectional view of a cylinder and piston in accordance with a fourth embodiment of the present invention;
FIG. 16 is a bottom view of the connecting slot of the cylinder of FIG. 15 in a ring shape;
fig. 17 is a bottom view of the connecting groove of the cylinder body of fig. 15 in the form of a bar-shaped groove.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the main runner 100, the cylinder body 1, the first chamber 11, the piston 2, the inlet channel 3, the outlet channel 4, the communication gap 5, the one-way valve 6, the annular groove 12, the boss 21, the flow groove 22, the communication groove 13, the end cover 7, the pressure regulator 8, the air charging connector 81, the second chamber 14, the pressure gauge 9, the base 10, the first sub-channel 31, the second sub-channel 32, the plug 200 and the limiting piece 300.
Example 1
The first embodiment is basically as shown in fig. 1 to 6, and the energy storage device for the high-viscosity medium comprises a pressure regulator 8 and a cylinder body 1, wherein the cylinder body 1 is connected with a piston 2 in a sliding manner, an end cover 7 is fixed on the cylinder body 1, the pressure regulator 8 is arranged on the end cover 7, and the pressure regulator 8 is used for applying external force to the piston 2; a communication channel is arranged between the cylinder body 1 and the main flow channel 100, and a cavity between the piston 2 in the cylinder body 1 and the communication channel is called a first chamber 11; the specific pressure regulator 8 may be that an elastic member (such as a spring) is installed between the output end of the linear module and the piston 2, and the pressure applied by the linear module acts on the piston 2 through the elastic member; the pressure regulator 8 may also be a cylinder, the output end of which is connected with the piston 2; in the embodiment, when the end cover 7 and the piston 2 form a closed second chamber 14 and the first chamber 11 are located at two sides of the piston 2, the pressure regulator 8 adopts an inflation unit, and the inflation unit adjusts the external force applied to the piston 2 through the change of the amount of the inflated gas. In addition, when the pressure regulator 8 uses the inflation unit, the second chamber 14 is further connected to a pressure testing unit, and the pressure testing unit uses the pressure gauge 9, where the pressure gauge 9 is used to test the pressure of the second chamber 14.
The communication channel comprises an inlet channel 3 and an outlet channel 4 which are all communicated with the main flow channel 100, the first chamber 11 is always communicated with the inlet channel 3 and the outlet channel 4 at the same time, in particular, a communication gap 5 is formed between the side wall of the piston 2 and the cylinder body 1, the communication gap 5 can be used for always communicating the inlet channel 3 and the outlet channel 4 together with the first chamber 11, one of the inlet channel 3 and the outlet channel 4 is connected to the side wall of the first chamber 11, the other is connected to the bottom of the first chamber 11, and the one-way valves 6 are arranged on the inlet channel 3 and the outlet channel 4 so that a medium can only flow into the first chamber 11 from the inlet channel 3 and can only be discharged from the first chamber 11 from the outlet channel 4. The junction of the inlet channel 3 and the main flow channel 100 is located upstream of the junction of the outlet channel 4 and the main flow channel 100.
The specific use method of the energy storage device of the embodiment is as follows:
taking fig. 1 as an example, when the energy storage device is used, the stroke of the bottom of the piston 2 is between the inlet channel 3 and the outlet channel 4, the energy storage device is mainly divided into four working states of a filling state, a filling stop state, a discharging state and a discharging stop state when in operation, when in the filling state, namely when the outlet pressure of the main channel is too high, a communication gap 5 exists between the cylinder 1 and the piston 2, the communication gap 5 and the chamber one 11 are communicated all the time, the inlet channel 3, the chamber one 11 and the outlet channel 4 are always communicated together, the upstream pressure borne by the one-way valve 6 in the inlet channel 3 is higher than the downstream pressure, the one-way valve 6 on the outlet channel 4 is closed because the upstream pressure is lower than the downstream pressure, and high-viscosity medium can enter the chamber one 11 again from the main channel 100 through the inlet channel 3 and the one-way valve 6, so that the medium in the cylinder 1 is filled, and the medium in the chamber one 11 is pushed to the position away from the outlet channel 4 of the inlet channel 3 firstly along with the continuous medium entering; as the packing enters the final stage, the speed of the piston 2 pushed by the medium is slower and slower until the piston 2 completely stops moving, at this time, the pressure in the downstream of the check valve 6 in the inlet channel 3 gradually rises to be close to the pressure in the main channel, the check valve 6 on the inlet channel 3 is closed, the packing process is completed, and at this time, the energy storage device is in a packing completion state.
When the outlet pressure of the main channel is lower, the upstream pressure borne by the check valve 6 on the inlet channel 3 is lower than the downstream pressure and is closed, while the upstream pressure borne by the check valve 6 on the outlet channel 4 is higher than the downstream pressure and is opened, the medium is extruded and discharged from the cylinder 1 by the piston 2, and in this time, in a discharging state, the medium in the cylinder 1 is firstly near the outlet channel 4 when the medium is filled, so that the medium closest to the outlet channel 4 (i.e. the medium which preferentially enters the cylinder 1) is preferentially discharged in the discharging state; when the discharge enters the final state, the moving speed of the piston 2 is also reduced, the upstream pressure of the check valve 6 in the outlet channel 4 gradually approaches to the downstream main flow channel 100, and the check valve 6 on the outlet channel 4 gradually closes to complete the discharge process, which is the discharge stop state.
In the four states described above, the stroke of the piston 2 is always between the inlet channel 3 and the outlet channel 4, so as to ensure that the medium always meets the first-in first-out principle in the above states.
Fig. 3 differs from fig. 1 in that the outlet channel 4 is also in communication with the bottom of the chamber one 11, except that in fig. 1 the position in which the outlet channel 4 is in communication is the bottom of the cylinder 1, whereas in fig. 3 the outlet channel 4 is in communication with the bottom of the side wall of the cylinder 1, whether in fig. 1 or 3 the position of the outlet channel 4 is substantially identical, so that the overall process of the energy storage device is substantially identical
Fig. 4 differs from fig. 1 in that the cylinder 1 and the piston 2 are arranged below the main flow channel 100, in which case the medium in the cylinder 1 is also preferentially brought closer to the outlet channel 4, so that it is also possible to ensure a first-in first-out of the energy storage device when operating.
The solution of fig. 5, which allows the cylinder body 1 and the piston 2 to be oriented with the inlet channel 3 communicating with the bottom of the first chamber 11 and the outlet channel 4 communicating with the side wall of the chamber of the piston 2, also ensures a first-in first-out operation of the accumulator.
In the above scheme, the energy storage devices all follow the first-in first-out principle of the medium, and the outlet pressure of the glue supply pump connected with the energy storage devices is a process of continuously alternating the ordinary pressure and the trough pressure, when the ordinary pressure is the pressure of the main runner 100 is too high, and when the trough pressure is the pressure, the pressure of the main runner 100 is too low, and by the action of the energy storage devices in the scheme, the outlet pressure of the main runner 100 is always kept stable; meanwhile, because the outlet pressure of the main runner 100 is alternately high and low, namely the four states of the energy storage device are continuously circulated, the high-viscosity medium entering the energy storage device can be discharged in a first-in first-out mode rapidly, the high-viscosity medium left in the energy storage device is avoided, the energy storage device is prevented from caking, and the problem that the existing energy storage device cannot be applied to the voltage stabilization of the high-viscosity medium similar to heat conducting glue is solved.
In addition, the energy storage device can replace a pressure reducing valve to be used in a gluing system of high-viscosity medium similar to heat-conducting glue, so that the output pressure of the glue supply pump is greatly reduced, the requirement on the glue supply pump is reduced, the purchasing cost and the maintenance cost of the glue supply pump are reduced, the service life of the glue supply pump is prolonged, and meanwhile, the long-term reliable operation of the gluing system is promoted; and this scheme does not need to use the relief pressure valve, and then has avoided the problem of bringing the unplanned shutdown when high and the change of replacement cost because of using the relief pressure valve completely, is favorable to improving production efficiency and improves the long-period operational reliability of rubber coating system.
In addition, due to the use of the energy storage device, even if the extrusion coating is stopped briefly, the high-viscosity medium with higher pressure, which is conveyed by the glue supply pump, enters the first chamber 11 of the energy storage device to store energy, and when the inlet pressure of the quantitative equipment is insufficient during the extrusion coating for a period of time, the pressure compensation can be provided for the inlet pressure of the quantitative equipment in time, so that the problem of poor extrusion coating effect caused by the change of the inlet pressure of the quantitative equipment is avoided.
Besides, when the pressure stabilizing range of the outlet pressure of the main runner 100 needs to be adjusted through the energy storage device, the pressure stabilizing range of the energy storage device can be adjusted through adjusting the external force applied by the pressure regulator 8 on the piston 2, so that the purpose of adjusting the outlet pressure of the main runner 100 is achieved, the practicability of the scheme is improved, for example, if the energy storage device is required to play a role of a buffer tank on the basis of the existing pressure stabilizing effect, more medium is filled in the energy storage device, at the moment, the acting force of the pressure regulator 8 on the piston 2 is reduced, so that the piston 2 is more easily pushed by the medium, and more medium in the energy storage device is achieved.
In connection with fig. 7 to 9, the second embodiment is modified from fig. 1 of the first embodiment, specifically, the connection between the inlet channel 3 and the first chamber 11 is higher than the connection between the outlet channel 4 and the first chamber 11, and the outlet channel 4 is connected to the bottom of the first chamber 11 (this is already shown in fig. 1). The cylinder body 1 is internally provided with the annular groove 12, the annular groove 12 is communicated with the inlet channel 3, the piston 2 comprises a piston 2 body and a protruding part 21 which are positioned in a cavity I11, the piston 2 body is vertically and slidably connected to the cylinder body 1, the cross section area of the protruding part 21 is smaller than that of the piston 2 body, so that a communication gap 5 is formed between the side wall of the protruding part 21 and the cylinder body 1, the specific protruding part 21 can be cylindrical, the cylindrical cross section area of the protruding part 21 is smaller than that of the piston 2 body, namely, the annular communication gap 5 can be the rest of regular polygons, the situation that a plurality of communication grooves 22 are formed in the circumferential direction of the protruding part 21 as shown in fig. 9 can be also realized, and the plurality of communication gaps 5 are formed through the specific structure of the protruding part 21, so that the communication gap 5 formed between the side wall of the protruding part 21 and the cylinder body 1 is of a symmetrical structure.
When the implementation is adopted, the following steps are: through the setting that the cross-sectional area is less than the bellying 21 of piston 2 body so that the communication space 5 between piston 2 lateral wall and the cylinder body 1 symmetry and even, and the communication space communicates with ring channel 12, so that when packing, the medium is filled up ring channel 12 earlier, overflows from ring channel 12's circumference edge and moves towards piston 2 bottom again, make the medium that overflows reach piston 2 bottom and promote piston 2 removal simultaneously, when guaranteeing that the medium promotes piston 2 removal, piston 2 atress is even, be favorable to improving energy storage device's life.
Example III
With reference to fig. 10 to 14, the third embodiment is further improved on the basis of the second embodiment, and the specific improvement is as follows: firstly, the pressure regulator 8 is specifically an inflation unit, the cylinder body 1 is connected with the end cover 7 through threads, a closed cavity II 14 is formed between the end cover 7 and the piston 2, the cavity II 14 and the cavity I11 are positioned on two sides of the piston 2, the inflation unit is communicated with the cavity II 14 through an inflation connector 81 provided with the inflation unit, the end cover 7 is fixedly connected with a pressure testing unit, the pressure testing unit adopts the pressure gauge 9, and the pressure gauge 9 is communicated with the cavity II 14 so as to be used for monitoring the air pressure of the cavity II 14.
Secondly, the device further comprises a base 10, wherein the inlet channel 3, the outlet channel 4 and the main runner 100 are all arranged on the base 10, the base 10 is further provided with a containing groove which is in threaded connection with the cylinder body 1, the containing groove forms a part of a first chamber 11, the base 10 is equivalent to a section which forms the bottom of the cylinder body 1, the inlet channel 3 and the outlet channel 4 are both communicated with the containing groove, the outlet channel 4 is communicated with the bottom of the containing groove, the inlet channel 3 is communicated with the side wall of the containing groove, the annular groove 12 is arranged on the base 10, and the annular groove 12 is communicated with the inlet channel 3; the inlet channel 3 comprises a first sub-channel 31 and a second sub-channel 32 which are perpendicular to each other, the one-way valve 6 of the inlet channel 3 is arranged on the first sub-channel 31, the end part of the first sub-channel 31 far away from the main channel 100, and the end part of the second sub-channel 32 far away from the cylinder body 1 are both fixed with plugs 200.
Thirdly, a limiting piece 300 is arranged between the bottom of the first chamber 11 and the piston 2, specifically, the limiting piece 300 is fixedly arranged on the one-way valve 6 arranged on the outlet channel 4 through threads, so as to limit the travel end of the piston 2 moving towards the outlet channel 4.
The four states of the operation of this embodiment are described in detail in the first embodiment, and the processes of the four states are shown in fig. 11 to 14, which are not repeated here.
The second embodiment is based on the second embodiment, and the base 10 is designed to make the layout of the channels and the flow passages more compact, and the total length of the flow passages and the flow passages is shorter, so that the pressure loss is greatly reduced, and the abrasion of equipment is reduced; in addition, the embodiment has simple structure, and has lower manufacturing cost, installation cost and maintenance cost.
Example IV
Referring to fig. 15 to 17, the fourth embodiment is different from the third embodiment in that the piston 2 does not include the boss 21, but the cylinder 1 is provided with the communication groove 13, and the communication groove 13 communicates with the inlet channel 3 and the chamber one 11, so that a communication gap 5 is formed between the side wall of the piston 2 and the communication groove 13 of the cylinder 1; the communication groove 13 is an annular groove (as shown in fig. 16) or a plurality of strip-shaped grooves (as shown in fig. 17) uniformly distributed along the circumferential direction of the cylinder body 1, so that a symmetrical communication gap 5 is formed between the side wall of the piston 2 and the communication groove 13 of the cylinder body 1.
The technical effects which are exactly the same as those of the third embodiment can be achieved by adopting the implementation, and the technical effects are as follows: when filling, after the annular groove 12 is filled with the medium entering through the inlet channel 3, the medium moves along the symmetrical communication gap 5 formed by the communication groove 13, so that the medium moving from the communication groove 13 can reach the bottom of the piston 2 and push the piston 2 to move at the same time, the stress uniformity of the piston 2 is ensured, and the service life of the energy storage device is prolonged.
The foregoing is merely exemplary of the present invention, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present invention, and these should also be regarded as the protection scope of the present invention, which does not affect the effect of the implementation of the present invention and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The utility model provides an energy storage device for high viscosity medium, includes voltage regulator and cylinder body, sliding connection has the piston on the cylinder body, and the voltage regulator is used for exerting external force for the piston, is equipped with the intercommunication passageway between cylinder body and the sprue, and cavity between piston and the intercommunication passageway in the cylinder body is called cavity one, its characterized in that: the communication channel comprises an inlet channel and an outlet channel which are both communicated with the main flow channel, the first chamber is always communicated with the inlet channel and the outlet channel at the same time, the inlet channel is connected to one side wall of the first chamber, and the outlet channel is connected to the bottom of the first chamber; the inlet channel and the outlet channel are provided with one-way valves, so that the medium can only flow into the first chamber from the inlet channel and can only flow out of the first chamber from the outlet channel;
the piston comprises a piston body and a bulge part, wherein the piston body and the bulge part are positioned in the first chamber, the piston body is connected to the cylinder body in a sliding way, the cross section area of the bulge part is smaller than that of the piston body, and a communication gap is formed between the side wall of the bulge part of the piston and the cylinder body; or the cylinder body is provided with a communication groove, the communication groove is communicated with the inlet channel and the first chamber, and a communication gap is formed between the side wall of the piston and the communication groove of the cylinder body;
an annular groove is arranged in the cylinder body and is communicated with the inlet channel, the annular groove is communicated with the communicating gap, and the communicating gap is of a symmetrical structure.
2. The energy storage device for a high-viscosity medium according to claim 1, wherein: the junction of the inlet passage and the primary flowpath is upstream of the junction of the outlet passage and the primary flowpath.
3. The energy storage device for a high-viscosity medium according to claim 1, wherein: the connection of the inlet channel and the first chamber is higher than the connection of the outlet channel and the first chamber.
4. The energy storage device for a high-viscosity medium according to claim 1, wherein: a limiting piece is arranged between the bottom of the first cavity and the piston.
5. The energy storage device for a high-viscosity medium according to claim 1, wherein: still include the base, inlet channel, outlet channel and sprue all set up on the base.
6. The energy storage device for a high-viscosity medium according to claim 1, wherein: the pressure regulator is an inflation unit, an end cover is fixed on the cylinder body, a sealed cavity II is formed between the end cover and the piston, the cavity II and the cavity I are positioned on two sides of the piston, the inflation unit is communicated with the cavity II, a pressure testing unit is fixedly connected to the end cover, and the pressure testing unit is communicated with the cavity II.
7. The method of using an energy storage device for high viscosity media according to claim 1, wherein:
when the energy storage device is used, an inlet channel and an outlet channel of the energy storage device are communicated with a main flow channel, the stroke of the bottom of the piston is between the inlet channel and the outlet channel, and when the outlet pressure of the main flow channel exceeds the preset pressure, a medium enters a first chamber through the inlet channel to be filled; when the outlet pressure of the main flow channel is lower than the preset pressure, the medium is discharged from the first chamber into the main flow channel through the outlet channel.
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