CN214425194U

CN214425194U - Constant pressure valve and constant pressure device

Info

Publication number: CN214425194U
Application number: CN202120354706.3U
Authority: CN
Inventors: 王帅中; 陈忠进
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-10-19
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a constant pressure valve, which comprises a pipe body, a spring, a piston and a positioning piece, wherein the spring, the piston and the positioning piece are all arranged in the pipe body; the inner wall of the tube body is provided with a limiting seat with a pressure relief opening, the spring is clamped between the positioning piece and the piston, and the piston is switched between a sealing position and a pressure relief position; when the piston is positioned at the sealing position, the piston is abutted against the limiting seat and blocks the pressure relief opening of the limiting seat; when the piston is located the release position, the pressure release mouth of spacing seat is opened to the piston. The utility model discloses still relate to a constant voltage equipment, including above-mentioned constant pressure valve and the pressure-bearing storehouse that has the cavity. The utility model discloses can provide a constant voltage environment, realize making super saturated concentration hydrogen-rich water in succession, can reduce substantially and make hydrogen-rich water cost, belong to hydrogen-rich water preparation facilities's technical field.

Description

Constant pressure valve and constant pressure device

Technical Field

The utility model relates to a hydrogen-rich water preparation facilities's technical field especially relates to a constant pressure valve and constant voltage equipment.

Background

At present, the mixing of hydrogen and water mainly comprises the following modes: 1. a non-pressure mixing mode: after water is filled in the open container, hydrogen is supplied to the water through the hydrogen production device and then naturally dissolved in the water under normal pressure for mixing. 2. A pressurizing and mixing mode: after water is filled in the closed container, hydrogen is supplied to the water through the hydrogen production device and then dissolved in the water under certain pressure for mixing. 3. Venturi tube and jet flow mixing mode: the hydrogen dissolution is performed by supplying hydrogen gas to the bypass while supplying water into the venturi. 4. And (3) combining a hollow fiber membrane hydrogen dissolving mode: and supplying water and hydrogen to the hollow fiber membrane filter element, and mixing the hydrogen and the water to dissolve the hydrogen by utilizing the small holes of the hollow fiber membrane and the formed certain pressure. The preparation method has the following defects: 1. since the saturated hydrogen-dissolved amount in water at normal pressure was 1.6ppm, the effect of supersaturation was not obtained. 2. The pressurized mixing mode can produce a super-saturation effect after pressurization, but the requirement on a mixing container is high due to the risk of overhigh pressure, and continuous water outlet cannot be realized only by taking a certain amount of water every time. 3. The venturi and the jet flow mode are low in hydrogen dissolving efficiency, a large amount of gas is wasted in the hydrogen dissolving process, and the cost is relatively high because the gas supply of the large-volume hydrogen production equipment is needed to achieve the saturation effect. 4. The hydrogen dissolving mode of the hollow fiber membrane cannot reach the hydrogen dissolving content of the technology, the cost of the gas supply equipment is relatively high, and the hollow fiber membrane belongs to consumable materials and needs to be replaced regularly.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model aims at: the utility model provides a constant pressure valve and constant voltage equipment, the utility model discloses can provide a constant voltage environment, realize making super saturated concentration hydrogen-rich water in succession, can reduce by a wide margin and make hydrogen-rich water cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a constant pressure valve comprises a pipe body, a spring, a piston and a positioning piece, wherein the spring, the piston and the positioning piece are all arranged in the pipe body; the inner wall of the pipe body is provided with a limiting seat with a pressure relief opening, the spring is clamped between the positioning piece and the piston, and the piston is switched between a sealing position and a pressure relief position; when the piston is located at the sealing position, the piston abuts against a limiting seat and blocks a pressure relief opening of the limiting seat; when the piston is located at the pressure relief position, the piston opens the pressure relief port of the limiting seat.

Further, the piston is provided with a limiting part and a sealing part which are connected in sequence; the sealing part is sleeved with a sealing ring, the limiting part is located between the limiting seat and the positioning part and is abutted against the limiting seat, the sealing part penetrates through the pressure relief opening, and the sealing ring is abutted against the limiting seat or the edge of the pressure relief opening.

Further, spacing portion with the sealing all is cylindricly, the terminal surface of spacing portion with the terminal surface fixed connection of sealing, the diameter of spacing portion is greater than the diameter of sealing, the circumference side of sealing is fitted with a contraceptive ring and is equipped with the mounting groove, the sealing ring is installed in the mounting groove.

Further, a slide rod is fixedly arranged on the piston; the positioning piece is provided with a rod hole for inserting the sliding rod, and the spring is sleeved on the sliding rod.

Further, be equipped with the internal thread on the inner wall of body, the setting element has first side and is equipped with the first connection face of external screw thread, the setting element with body threaded connection, the first side of setting element with have the clearance between the inner wall of body.

Further, the positioning piece is in a square plate shape, and the rod hole is located in the central area of the positioning piece.

Further, the outer circumferential side surface of the pipe body is provided with an external thread.

Furthermore, the outer circumferential side surface of the pipe body is also provided with a hexagonal block.

A constant pressure device comprises the constant pressure valve and a pressure-bearing bin with a cavity; the pressure-bearing bin is provided with a liquid inlet, an air inlet and a pressure regulating port which are communicated with the cavity; the body has first end and is used for connecting the second end at pressure regulating mouth department, the setting element the spring and spacing seat is along first end extremely the direction of second end is arranged in proper order.

Further, the second end of the pipe body is in threaded connection with the pressure-bearing bin, and an atomizer is installed at the liquid inlet.

Compared with the prior art, the utility model, its beneficial effect lies in: the application of the installation of constant pressure valve on preparation hydrogen-rich water's pressure-bearing storehouse, when preparation hydrogen-rich water's pressure-bearing storehouse internal pressure was too big, the piston of constant pressure valve was opened automatically, and hydrogen-rich water in the pressure-bearing storehouse can follow the automatic outflow of constant pressure valve. And the piston of the constant pressure valve is automatically closed after the pressure relief is finished. The constant pressure valve can automatically regulate pressure, so that the pressure in the pressure-bearing bin is in a constant state, and the quality of the hydrogen-rich water is ensured. This constant voltage equipment can produce hydrogen-rich water (more than 3.0 ppm) of super saturated concentration in succession, constant voltage equipment's pressure-bearing storehouse is under the constant voltage condition, the atomizing through the atomizer sprays and can realize making super saturated concentration hydrogen-rich water in succession, this constant voltage equipment dissolves hydrogen efficiently, consume less hydrogen volume at every turn and can realize that the high concentration dissolves hydrogen, realize letting in a small amount of gas and can realize preparing the hydrogen-rich water of super saturated concentration, the problem that the hydrogen-rich water preparation equipment cost of super saturated concentration is high can be solved.

Drawings

Fig. 1 is a sectional view of a first constant pressure valve.

FIG. 2 is a cross-sectional view of a second type of constant pressure valve

Fig. 3 is a schematic of the structure of the piston and slide rod.

Fig. 4 is a cross-sectional view of the tube body.

Fig. 5 is a schematic structural view of the positioning member.

Fig. 6 is a schematic structural view of the tube.

Fig. 7 is a schematic view of the construction of the constant pressure device.

In the figure, 1 is a pipe body, 2 is a spring, 3 is a piston, 4 is a positioning piece, 5 is a limiting seat, 6 is a sealing ring, 7 is a sliding rod, 8 is a hexagonal block, 9 is a pressure-bearing bin, 10 is an atomizer, 31 is a limiting part, 32 is a sealing part, 33 is an installation groove, 34 is a circular table part, 41 is a rod hole, 51 is a pressure relief opening, 71 is a positioning block, 91 is a liquid inlet, 92 is an air inlet, and 93 is a cavity.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "first", "second", and the like are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information may also be referred to as "second" information, and similarly, the "second" information may also be referred to as "first" information, without departing from the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", "communicating", "abutting" and "abutting" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For ease of description, the orientations described below will now be described as follows: the up-down direction described below corresponds to the up-down direction of fig. 1 itself.

As shown in fig. 1 to 3, the present embodiment provides a constant pressure valve, which includes a pipe body 1, a spring 2, a piston 3, and a positioning element 4, all installed in the pipe body 1; the inner wall of the tube body 1 is provided with a limiting seat 5 with a pressure relief opening 51, the spring 2 is clamped between the positioning piece 4 and the piston 3, and the piston 3 is switched between a sealing position and a pressure relief position; when the piston 3 is located at the sealing position, the piston 3 is abutted against the limiting seat 5 and blocks the pressure relief opening 51 of the limiting seat 5; when the piston 3 is located at the pressure relief position, the piston 3 opens the pressure relief port 51 of the stopper seat 5. The positioning member 4 is mounted on the inner wall of the tubular body 1 downstream in the gas or liquid flow direction, and the pressure relief port 51 is upstream in the gas or liquid flow direction. When the pressure of the upstream gas or liquid is smaller, the piston 3 upwards blocks the pressure relief opening 51 under the action of the force of the spring 2, so that the gas or liquid cannot pass through the pressure relief opening, and when the pressure of the upstream gas or liquid is larger than the acting force of the spring 2, the piston 3 drives the spring 2 to compress downwards, the pressure relief opening 51 is opened, the two ends of the pipe body 1 are communicated, the gas or liquid can flow, the pressure relief is completed, and the gas or liquid at the upstream of the pipe body 1 is ensured to be in a certain range, so that the constant pressure is realized.

Specifically, in one embodiment, the tube body 1 is integrally formed with the limiting seat 5, and the upper end surface of the limiting seat 5 is an inclined surface which is inclined from top to bottom toward the center of the pressure relief opening 51 and plays a role in guiding gas and liquid.

As shown in fig. 3, specifically, in one embodiment, the piston 3 has a stopper portion 31 and a seal portion 32 connected in sequence; the sealing portion 32 is used for blocking the pressure relief opening 51, the sealing portion 32 abuts against the lower end face of the limiting seat 5, and the sealing portion 32 and the limiting portion 31 are sequentially arranged from top to bottom. The sealing part 32 is sleeved with a sealing ring 6, the limiting part 31 is positioned between the limiting seat 5 and the positioning part 4 to slide, and the sealing part 32 can penetrate into the pressure relief opening 51. The sealing ring 6 is a rubber ring, the sealing ring 6 has two sealing modes, the first mode is as shown in figure 1, the sealing ring 6 is abutted against the lower end face of the limiting seat 5 and clamped between the limiting part 31 and the limiting seat 5. Second, as shown in fig. 2, the seal ring 6 follows the seal portion 32 into the relief port 51 and is sandwiched between the seal portion 32 and the inner wall of the relief port 51.

Specifically, in one embodiment, the limiting portion 31 and the sealing portion 32 are both cylindrical, the end surface of the limiting portion 31 is fixedly connected with the end surface of the sealing portion 32, the diameter of the limiting portion 31 is larger than that of the sealing portion 32, the diameter of the sealing portion 32 is equal to or slightly smaller than that of the pressure relief opening 51, an installation groove 33 is annularly arranged on the circumferential side surface of the sealing portion 32, the sealing ring 6 is clamped in the installation groove 33, and the sealing ring 6 is prevented from sliding out through the limitation of the installation groove 33.

Specifically, in one embodiment, the piston 3 further has a circular truncated cone portion 34, a lower end surface of the circular truncated cone portion 34 is connected to an upper end surface of the sealing portion 32, a diameter of the lower end surface of the circular truncated cone portion 34 is equal to a diameter of the upper end surface of the sealing portion 32, and the diameter of the upper end surface of the circular truncated cone portion 34 is smaller than the diameter of the lower end surface of the circular truncated cone portion 34, so that the piston 3 can be inserted into the pressure relief opening 51 easily.

Specifically, in one embodiment, the stopper 31, the sealing portion 32, and the boss 34 are integrally formed.

Specifically, in one embodiment, the mounting groove 33 is located at a connection position of the limiting portion 31 and the sealing portion 32, the limiting portion 31 and the sealing portion 32 together form the mounting groove 33 for limiting the sealing ring 6, an upper limit surface of the mounting groove 33 is located on a circumferential side surface of the sealing portion 32, and a lower limit surface of the mounting groove 33 is located on an end surface of the limiting portion 31.

As shown in fig. 3 and 5, in particular, in one embodiment, a sliding rod 7 is fixedly arranged on the piston 3; the positioning piece 4 is provided with a rod hole 41 for inserting the sliding rod 7, and the spring 2 is sleeved on the sliding rod 7.

Specifically, in one embodiment, the sliding rod 7 is integrally formed with the stopper portion 31 of the piston 3.

Specifically, in one embodiment, a limiting block is annularly arranged at a joint of the sliding rod 7 and the limiting portion 31 of the piston 3, and the diameter of the limiting block is the same as the inner diameter of the spring 2, so that the spring 2 is effectively prevented from moving radially.

Specifically, in one embodiment, the rod hole 41 is a circular hole, the rod hole 41 can also be a square hole, and the sliding rod 7 is a square rod, so as to prevent the piston 3 from rotating.

Specifically, in one embodiment, the sliding rod 7 or the limiting portion 31 of the piston 3 is provided with an internal channel, an inlet of the internal channel is located on a side surface of the sliding rod 7 or a side surface of the limiting portion 31, the internal channel penetrates through the sliding rod 7 from top to bottom, and an inlet of the internal channel is located on a lower end surface of the sliding rod 7, so that the circulation of gas or liquid can be accelerated.

As shown in fig. 4, in one embodiment, an inner thread is disposed on an inner wall of the tube body 1, the positioning member 4 has a first side surface and a first connection surface having an outer thread, the positioning member 4 is connected to the tube body 1 by a thread, and a gap is disposed between the first side surface of the positioning member 4 and the inner wall of the tube body 1. The gap facilitates the outflow of gas or liquid. The positioning piece 4 is in threaded connection with the inner wall of the pipe body 1. The positioning piece 4 is detachably arranged on the inner wall of the pipe body 1, and the position of the positioning piece 4 can be adjusted through rotation. The pressure of the upper reaches in the pipe body 1 can be determined according to the elasticity of the spring 2, and can also be changed by adjusting the position of the positioning part 4, so that the adjustment of the constant pressure value of the constant pressure valve is realized.

Specifically, in one embodiment, the positioning member 4 is in the form of a square plate, and the rod hole 41 is located in a central region of the positioning member 4, as shown in fig. 5. The external thread of the positioning element 4 is located on two opposite sides of the positioning element 4, and a gap is formed between the other two opposite sides and the inner wall of the positioning element 4.

Specifically, in one embodiment, as shown in fig. 6, the outer circumferential side of the pipe body 1 is provided with an external thread. The constant pressure valve can be installed on other equipment through the external thread.

Specifically, in one embodiment, the outer circumferential side of the tube body 1 is further provided with a hexagonal block 8. The hexagonal block 8 is integrally formed with the pipe body 1. The hexagonal block 8 facilitates installation of the constant pressure valve.

As shown in fig. 1, 2 and 7, a constant pressure device comprises the constant pressure valve and a pressure-bearing bin 9 with a cavity 93; the pressure-bearing bin 9 is provided with a liquid inlet 91, an air inlet 92 and a pressure regulating port which are communicated with a cavity 93; gas inlet 92 communicates with the hydrogen-producing apparatus. The body 1 has first end and is used for connecting the second end at pressure regulating mouth department, and setting element 4, spring 2 and spacing seat 5 arrange in proper order along the direction of first end to second end. The constant pressure device is composed of a pressure-bearing bin 9 and a constant pressure valve, wherein the upper end of the pressure-bearing bin 9 is provided with a liquid inlet 91 and a gas inlet 92, and the pressure regulating port at the lower end is provided with the constant pressure valve. The constant pressure device does not need to continuously supply gas along with water production, can realize continuous water production after inputting a certain amount of gas, has low waste rate of high-efficiency hydrogen dissolving gas, can meet the effect of high-concentration continuous hydrogen dissolving by hydrogen production equipment with small gas flow, and can greatly reduce the equipment cost. The constant pressure device has simple and stable structure and is not easy to break down. After gas is added into the pressure-bearing bin 9, a certain pressure is reached, hydrogen is dissolved through water supply spraying, and a constant pressure valve at the bottom opens to discharge generated water when the constant pressure valve reaches a certain pressure value. The top of the pressure-bearing bin 9 can also be realized by replacing the liquid inlet 91 and the air inlet 92 with a tee joint or other modes, the atomizer 10 can be set to 1 or more according to the water supply quantity, the opening of the constant pressure valve can also be increased or reduced in diameter according to the water supply quantity requirement, the inner spring 2 can be set to have elasticity according to the specific pressure requirement, and the constant pressure valve can also be indirectly connected with the pressure-bearing bin 9 through a pipeline instead of being directly connected with the pressure-bearing bin 9 according to the structure of actual equipment.

Specifically, in one embodiment, the second end of the pipe body 1 is connected with the pressure-bearing bin 9 in a threaded manner, and the liquid inlet 91 is provided with the atomizer 10.

The utility model discloses a theory of operation does: reach certain pressure in the cavity of earlier with gaseous pressure-bearing storehouse of sending into through the air inlet, gas can be discharged through the constant pressure valve when pressure surpasss the maximum opening pressure of constant pressure valve, carry water in to the pressure-bearing storehouse through the inlet after that, the inlet is equipped with the atomizer in the pressure-bearing storehouse one end and can gets into the pressure-bearing storehouse with the form of water with the spraying in, under the effect of the gas pressure in the cavity, the liquid of atomizing state can fuse with gas (hydrogen) more effectual and realize the high concentration and dissolve the hydrogen effect, the hydrogen-rich water after dissolving the hydrogen alright in order not to cut off when the storehouse internal pressure is greater than the opening pressure of constant pressure valve when water constantly gets into in the pressure-bearing storehouse. After the non-pressure or automatic pressure relief is finished at ordinary times, the piston can be blocked at the pressure relief opening of the limiting seat under the action of the spring, and the piston plays a role in sealing through the sealing ring. When the pressure in the pressure-bearing bin reaches a certain value, the pressure can extrude the spring to collapse, so that the piston slides downwards to open the pressure relief opening to allow water or gas to pass through, and the hydrogen-enriched water with the supersaturated concentration can be automatically and continuously manufactured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A constant pressure valve, characterized by: the device comprises a tube body, a spring, a piston and a positioning piece which are all arranged in the tube body; the inner wall of the pipe body is provided with a limiting seat with a pressure relief opening, the spring is clamped between the positioning piece and the piston, and the piston is switched between a sealing position and a pressure relief position; when the piston is located at the sealing position, the piston abuts against a limiting seat and blocks a pressure relief opening of the limiting seat; when the piston is located at the pressure relief position, the piston opens the pressure relief port of the limiting seat.

2. A constant pressure valve according to claim 1, wherein: the piston is provided with a limiting part and a sealing part which are connected in sequence; the sealing part is sleeved with a sealing ring, the limiting part is located between the limiting seat and the positioning part and is abutted against the limiting seat, the sealing part penetrates through the pressure relief opening, and the sealing ring is abutted against the limiting seat or the edge of the pressure relief opening.

3. A constant pressure valve according to claim 2, wherein: spacing portion with the sealing all is cylindricly, the terminal surface of spacing portion with the terminal surface fixed connection of sealing, the diameter of spacing portion is greater than the diameter of sealing, the circumference side of sealing is fitted with a contraceptive ring and is equipped with the mounting groove, the sealing ring is installed in the mounting groove.

4. A constant pressure valve according to claim 1, wherein: a sliding rod is fixedly arranged on the piston; the positioning piece is provided with a rod hole for inserting the sliding rod, and the spring is sleeved on the sliding rod.

5. A constant pressure valve according to claim 4, wherein: the inner wall of the pipe body is provided with an internal thread, the positioning piece is provided with a first side face and a first connecting face provided with an external thread, the positioning piece is in threaded connection with the pipe body, and a gap is reserved between the first side face of the positioning piece and the inner wall of the pipe body.

6. A constant pressure valve according to claim 5, wherein: the locating piece is in a square plate shape, and the rod hole is located in the central area of the locating piece.

7. A constant pressure valve according to claim 1, wherein: and the outer circumferential side surface of the pipe body is provided with an external thread.

8. A constant pressure valve according to claim 7, wherein: and the side surface of the outer circumference of the pipe body is also provided with a hexagonal block.

9. A constant pressure device, characterized in that: comprising a constant pressure valve according to any of claims 1-7 and a pressure-containing chamber having a cavity; the pressure-bearing bin is provided with a liquid inlet, an air inlet and a pressure regulating port which are communicated with the cavity; the body has first end and is used for connecting the second end at pressure regulating mouth department, the setting element the spring and spacing seat is along first end extremely the direction of second end is arranged in proper order.

10. The constant pressure device as claimed in claim 9, wherein: the second end of the pipe body is in threaded connection with the pressure-bearing bin, and an atomizer is installed at the liquid inlet.