CN112915644A - Automatic gas-liquid separation method - Google Patents
Automatic gas-liquid separation method Download PDFInfo
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- CN112915644A CN112915644A CN202110217763.1A CN202110217763A CN112915644A CN 112915644 A CN112915644 A CN 112915644A CN 202110217763 A CN202110217763 A CN 202110217763A CN 112915644 A CN112915644 A CN 112915644A
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- 239000007788 liquid Substances 0.000 title claims abstract description 160
- 238000000926 separation method Methods 0.000 title claims abstract description 47
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 157
- 239000010935 stainless steel Substances 0.000 claims abstract description 157
- 239000007791 liquid phase Substances 0.000 claims abstract description 106
- 238000007789 sealing Methods 0.000 claims abstract description 98
- 239000012071 phase Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011229 interlayer Substances 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 20
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 53
- 239000000741 silica gel Substances 0.000 claims description 53
- 229910002027 silica gel Inorganic materials 0.000 claims description 53
- 230000005484 gravity Effects 0.000 claims description 27
- 238000005188 flotation Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 11
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 238000007667 floating Methods 0.000 description 10
- 230000007774 longterm Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
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Abstract
The invention discloses an automatic gas-liquid separation method, which belongs to the technical field of gas-liquid separation and is characterized by comprising the following steps: s1, introducing the pressurized liquid-containing sample gas into the interlayer; s2, discharging the liquid phase from a liquid outlet at the bottom of the outer cylinder through the circular through hole; s3, in the process that the liquid phase is discharged from the liquid discharge port, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy is reduced, the spherical plug blocks the circular through hole in the organic silicon rubber sealing head, and linear sealing is recovered; and S4, stopping discharging the liquid phase from the liquid outlet, keeping the liquid phase in the bottom space of the cylinder, and blocking the gas phase from flowing out of the liquid outlet to realize the automatic separation of gas and liquid. According to the separation method, when the liquid phase is not completely discharged, the stainless steel buoy can recover linear sealing, and the space at the bottom of the buoy always keeps the existence of the liquid phase, so that the automatic separation of gas and liquid is realized, the separation effect is guaranteed, the separation efficiency is improved, and the separation method is suitable for being used in explosion-proof and toxic and harmful production fields, and the applicability is enhanced.
Description
Technical Field
The invention relates to the technical field of gas-liquid separation, in particular to an automatic gas-liquid separation method.
Background
The gas-liquid separator may be installed at an inlet and an outlet of the gas compressor for gas-liquid separation. Can be used for gas phase demisting of various gas water washing towers, absorption towers and desorption towers. The gas-liquid separator can also be applied to various industrial and civil occasions of gas dust removal, oil-water separation and liquid impurity removal.
A common separation method for gas-liquid separators is gravity settling. Because the specific gravity of the gas is different from that of the liquid, when the liquid flows together with the gas, the liquid is subjected to a larger action of gravity to generate a downward speed, and the gas still flows towards the original direction, namely the liquid and the gas have a tendency of being separated in a gravity field, and the downward liquid is attached to the wall surface, gathered together and discharged through a discharge pipe.
The liquid level control technology of the existing gas-liquid separation process mainly adopts floating ball linkage or oscillation damping technology to detect the liquid level. The floating ball linkage technology is adopted to detect the liquid level, the vertical displacement of a closed floating ball on the liquid level is generally converted into an electronic signal to be output, and a control execution mechanism adjusts the feeding or discharging flow according to the signal output to realize the liquid level control. The liquid level control can be realized by directly utilizing the principle of floating ball buoyancy and gravity balance and adjusting the opening of a feed valve or a discharge valve in a mechanical linkage mode.
Chinese patent publication No. CN 1457915, published as 26/11/2003, discloses a liquid level automatic control integrated gas-liquid separator, which is composed of an adjusting hand wheel, a sealing nut, a sealing ring, an adjusting threaded sleeve, an adjusting threaded slide rod, an adjusting slide sleeve, a separator lower cylinder, a float bowl, a feed pipe, a drain valve body, a drain valve needle rod and an exhaust pipe, and is characterized in that: the component carries out the integrated design of gas-liquid separation and liquid level control, constitutes manual adjustment mechanism and liquid level control mechanism respectively, manual adjustment mechanism and liquid level control mechanism carry out vertical coaxial assembly, the barrel is inside to set up a non-airtight flotation pontoon under the separator, the gas-liquid two-phase flow separates inside or outside the flotation pontoon, the bottom trompil of flotation pontoon and the side trompil that leans on the bottom, the bottom assembly of barrel is as an organic whole under flowing back valve body and the separator, the flowing back valve needle bar assembles as an organic whole with the flotation pontoon bottom, adjust the sliding sleeve and assemble as an organic whole with the flotation pontoon top, adjust the hand wheel, sealing nut, the sealing ring, adjust the thread bush, adjust the thread litter and the barrel top assembly as an organic whole under separator, adjust the thread litter lower extreme and adjust the sliding.
The liquid level self-control integrated gas-liquid separator disclosed in the patent document is characterized in that a regulating threaded sliding rod chuck in a regulating sliding sleeve is contacted with a necking at the upper end of the regulating sliding sleeve by rotating a hand wheel, a floating barrel and a needle rod of a liquid discharge valve are linked to move upwards, the needle rod of the liquid discharge valve is separated from an outlet of the liquid discharge valve, the liquid discharge valve is in a forced opening state, materials in a separator are discharged from the outlet of the liquid discharge valve, the maximum opening degree of the liquid discharge valve is regulated and set by a manual regulating mechanism, and the liquid discharge valve is forcibly closed. Because the manual adjustment is adopted, the automatic gas-liquid separation without external force and lever can not be realized, the separation efficiency is poor, and the device is not suitable for explosion-proof and toxic and harmful production fields and has poor applicability.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the automatic gas-liquid separation method, and the separation method can restore the linear sealing of the stainless steel buoy when the liquid phase is not completely discharged, and the space at the bottom of the buoy is always kept in the existence of the liquid phase, so that the automatic gas-liquid separation is realized, the separation effect is ensured, the separation efficiency is improved, the method is suitable for being used in explosion-proof and toxic and harmful production fields, and the applicability is enhanced.
The invention is realized by the following technical scheme:
an automatic gas-liquid separation method is characterized by comprising the following steps:
s1, introducing the pressurized liquid-containing sample gas into an interlayer between the outer cylinder and the stainless steel buoy through the upper positioning needle support, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder and the bottom of the stainless steel buoy, the buoyancy generated by the liquid phase on the stainless steel buoy is larger than the sample gas pressure and the self gravity of the stainless steel buoy, the spherical plugs on the stainless steel buoy and the lower positioning needle float and rise, and the liquid phase is discharged from the liquid discharge port at the bottom of the outer cylinder through the circular through hole;
s3, in the process that the liquid phase is discharged from the liquid discharge port, the buoyancy of the stainless steel buoy decreases along with the decrease of the liquid phase until the spherical plug on the lower positioning pin of the stainless steel buoy falls back on the organic silica gel sealing head, and the spherical plug blocks the circular through hole on the organic silica gel sealing head to recover linear sealing;
and S4, stopping continuously discharging the liquid phase in the cylinder bottom space from the liquid discharge port, keeping the liquid phase in the cylinder bottom space, and blocking the gas phase from flowing out of the liquid discharge port to realize the automatic separation of gas and liquid.
In step S1, the automatic drain valve includes an outer cylinder, a stainless steel float bowl is provided in the outer cylinder, an interlayer is provided between the outer cylinder and the stainless steel float bowl, an upper positioning pin support is embedded at the top of the outer cylinder, an upper positioning groove is formed in the upper positioning pin support, the upper positioning groove penetrates through the upper positioning pin support, an organic silica gel sealing head is embedded at the bottom of the outer cylinder, a lower positioning groove is formed in the organic silica gel sealing head, a circular through hole is formed in the center of the organic silica gel sealing head, the circular through hole is communicated with the lower positioning groove, an upper positioning pin matched with the upper positioning groove is fixedly connected to the top of the stainless steel float bowl, a lower positioning pin matched with the lower positioning groove is fixedly connected to the bottom of the stainless steel float bowl, a spherical plug used for plugging the circular through hole is fixedly connected to the lower positioning pin, a drain port is formed in the bottom.
The organic silica gel sealing head comprises a cylindrical section and an arc-surface section, the cylindrical section and the arc-surface section are integrally formed, and the circular through hole is located in the cylindrical section.
The length of the upper positioning needle is the same as that of the upper positioning needle support, and the length of the lower positioning needle is the same as that of the lower positioning needle support.
The upper end of the stainless steel buoy is arc-shaped.
The cross section of the upper positioning groove is trapezoidal, and the cross section of the lower positioning groove is rectangular.
The outer cylinder is a stainless steel outer cylinder.
The lower extreme of stainless steel flotation pontoon is circular-arc, and the radian size of stainless steel flotation pontoon lower extreme is the same with the cambered surface section radian size of silicone rubber sealing head.
The beneficial effects of the invention are mainly shown in the following aspects:
1. in the invention, S1, pressurized liquid-containing sample gas is introduced into an interlayer between an outer cylinder and a stainless steel buoy through an upper positioning needle support, liquid phase flows downwards under the action of gravity, and gas phase rises back and is discharged through the upper positioning needle support; s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder and the bottom of the stainless steel buoy, the buoyancy generated by the liquid phase on the stainless steel buoy is larger than the sample gas pressure and the self gravity of the stainless steel buoy, the spherical plugs on the stainless steel buoy and the lower positioning needle float and rise, and the liquid phase is discharged from the liquid discharge port at the bottom of the outer cylinder through the circular through hole; s3, in the process that the liquid phase is discharged from the liquid discharge port, the buoyancy of the stainless steel buoy decreases along with the decrease of the liquid phase until the spherical plug on the lower positioning pin of the stainless steel buoy falls back on the organic silica gel sealing head, and the spherical plug blocks the circular through hole on the organic silica gel sealing head to recover linear sealing; s4, stopping discharging the liquid phase in the cylinder bottom space continuously from the liquid discharge port, keeping the liquid phase in the cylinder bottom space all the time, blocking the gas phase from flowing out from the liquid discharge port, and realizing the automatic separation of gas and liquid.
2. In the invention, in step S1, the automatic drain valve comprises an outer cylinder, a stainless steel float bowl is arranged in the outer cylinder, an interlayer is arranged between the outer cylinder and the stainless steel float bowl, an upper positioning needle support is embedded in the top of the outer cylinder, an upper positioning groove is formed in the upper positioning needle support, the upper positioning groove penetrates through the upper positioning needle support, an organic silica gel sealing head is embedded in the bottom of the outer cylinder, a lower positioning groove is formed in the organic silica gel sealing head, a circular through hole is formed in the center of the organic silica gel sealing head, the circular through hole is communicated with the lower positioning groove, an upper positioning needle matched with the upper positioning groove is fixedly connected to the top of the stainless steel float bowl, a lower positioning needle matched with the lower positioning groove is fixedly connected to the bottom of the stainless steel float bowl, a spherical plug for plugging the circular through hole is fixedly connected to the lower positioning needle, a drain hole is formed in the bottom of the, when the liquid phase flows into the cylinder bottom space between the bottom of the outer cylinder and the bottom of the stainless steel buoy, the buoyancy generated by the liquid phase on the stainless steel buoy is larger than the pressure of the sample gas and the self gravity of the stainless steel buoy, the spherical plugs on the stainless steel buoy and the lower positioning needle rise in a floating mode, the liquid phase is discharged from the liquid discharge port at the bottom of the outer cylinder through the circular through hole, the buoyancy of the stainless steel buoy is reduced along with the reduction of the liquid phase in the process of discharging the liquid phase from the liquid discharge port until the spherical plug on the lower positioning needle of the stainless steel buoy falls back onto the organic silica gel sealing head, the circular through hole on the organic silica gel sealing head is plugged by the spherical plug, linear sealing is recovered, the liquid phase still existing in the cylinder bottom space stops being continuously discharged from the liquid discharge port, the cylinder bottom space is kept to exist all the liquid phase all the time, the gas phase is blocked from flowing, the linear sealing reliability in the long-term use process can be ensured.
3. According to the invention, the organic silica gel sealing head comprises the cylindrical section and the cambered surface section which are integrally formed, and the circular through hole is positioned on the cylindrical section, so that the whole organic silica gel sealing head can be tightly attached to the inner wall of the outer barrel, and a good sealing effect is achieved.
4. According to the invention, the length of the upper positioning needle is the same as that of the upper positioning needle support, the length of the lower positioning needle is the same as that of the lower positioning needle support, so that the upper positioning needle and the lower positioning needle of the stainless steel buoy can be correspondingly limited and positioned in the upper positioning groove and the lower positioning groove respectively, the movement space on the upper positioning groove limits the stainless steel buoy to rise to the highest position, namely the highest position allowed by the stainless steel buoy, and the position limits the spherical plug of the lower positioning needle, so that the lower positioning needle cannot leave the lower positioning groove; on the contrary, when the spherical plug of the lower positioning needle is located to block the circular through hole of the organic silica gel sealing head to realize linear sealing, the upper positioning needle cannot leave the upper positioning groove, so that the stainless steel buoy is always kept in a vertical state in the up-and-down floating process, and the gas-liquid separation efficiency is favorably improved.
5. According to the invention, the upper end of the stainless steel buoy is arc-shaped, and by adopting the straight-through structure, when the pressurized liquid-containing sample gas carries particulate impurities, the particulate impurities are not easy to stay and accumulate, and the lever-free straight-through structure without external force can discharge the particulate impurities from the liquid discharge port along with the liquid phase, so that the liquid-containing sample gas is kept smooth for long-term use and is not blocked.
6. According to the invention, the cross section of the upper positioning groove is in a trapezoid shape, and the cross section of the lower positioning groove is in a rectangular shape, so that a better limiting effect can be achieved, and the stainless steel buoy can be ensured to be always kept in a vertical state in the up-and-down floating process.
7. According to the invention, the outer cylinder is a stainless steel outer cylinder, and the stainless steel outer cylinder has good corrosion resistance and can bear gas-liquid separation at higher pressure and temperature, so that the long-term use stability of the drain valve can be ensured.
8. According to the invention, the lower end of the stainless steel buoy is arc-shaped, the radian of the lower end of the stainless steel buoy is the same as that of the arc-shaped section of the organic silica gel sealing head, and the impact caused by the descending of the stainless steel buoy can be reduced in the process of forming linear sealing by plugging the circular through hole of the organic silica gel sealing head by the spherical plug on the lower positioning needle, so that the reliability of the whole drain valve in long-term use is favorably ensured.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, in which:
FIG. 1 is a schematic view of the automatic drain valve of the present invention;
the labels in the figure are: 1. the device comprises an outer barrel, 2, a stainless steel buoy, 3, an interlayer, 4, an upper positioning needle support, 5, an upper positioning groove, 6, an organic silica gel sealing head, 7, a lower positioning groove, 8, a circular through hole, 9, an upper positioning needle, 10, a lower positioning needle, 11, a spherical plug, 12, a liquid discharge port, 13, a cylindrical section, 14 and an arc surface section.
Detailed Description
Example 1
Referring to fig. 1, an automatic gas-liquid separation method includes the following steps:
s1, introducing pressurized liquid-containing sample gas into the interlayer 3 between the outer cylinder 1 and the stainless steel buoy 2 through the upper positioning needle support 4, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support 4;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel buoy 2 and the buoyancy generated by the liquid phase on the stainless steel buoy 2 is larger than the sample gas pressure and the self gravity of the stainless steel buoy 2, the stainless steel buoy 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, and the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8;
s3, in the process that the liquid phase is discharged from the liquid discharge port 12, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy 2 is reduced until the spherical plug 11 on the lower positioning needle 10 of the stainless steel buoy 2 falls back on the organic silicon rubber sealing head 6, and the spherical plug 11 plugs the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing;
s4, the liquid phase in the bottom space stops being discharged from the liquid outlet 12, so that the liquid phase is kept in the bottom space all the time, the gas phase is blocked from flowing out from the liquid outlet 12, and the gas and the liquid are automatically separated.
In the most basic implementation manner of the embodiment, "S1, introducing pressurized liquid-containing sample gas into an interlayer between an outer cylinder and a stainless steel buoy through an upper positioning needle bracket, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle bracket; s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder and the bottom of the stainless steel buoy, the buoyancy generated by the liquid phase on the stainless steel buoy is larger than the sample gas pressure and the self gravity of the stainless steel buoy, the spherical plugs on the stainless steel buoy and the lower positioning needle float and rise, and the liquid phase is discharged from the liquid discharge port at the bottom of the outer cylinder through the circular through hole; s3, in the process that the liquid phase is discharged from the liquid discharge port, the buoyancy of the stainless steel buoy decreases along with the decrease of the liquid phase until the spherical plug on the lower positioning pin of the stainless steel buoy falls back on the organic silica gel sealing head, and the spherical plug blocks the circular through hole on the organic silica gel sealing head to recover linear sealing; s4, stopping discharging the liquid phase in the cylinder bottom space continuously from the liquid discharge port, keeping the liquid phase in the cylinder bottom space all the time, blocking the gas phase from flowing out from the liquid discharge port, and realizing the automatic separation of gas and liquid.
Example 2
Referring to fig. 1, an automatic gas-liquid separation method includes the following steps:
s1, introducing pressurized liquid-containing sample gas into the interlayer 3 between the outer cylinder 1 and the stainless steel buoy 2 through the upper positioning needle support 4, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support 4;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel buoy 2 and the buoyancy generated by the liquid phase on the stainless steel buoy 2 is larger than the sample gas pressure and the self gravity of the stainless steel buoy 2, the stainless steel buoy 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, and the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8;
s3, in the process that the liquid phase is discharged from the liquid discharge port 12, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy 2 is reduced until the spherical plug 11 on the lower positioning needle 10 of the stainless steel buoy 2 falls back on the organic silicon rubber sealing head 6, and the spherical plug 11 plugs the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing;
s4, the liquid phase in the bottom space stops being discharged from the liquid outlet 12, so that the liquid phase is kept in the bottom space all the time, the gas phase is blocked from flowing out from the liquid outlet 12, and the gas and the liquid are automatically separated.
In the step S1, the automatic liquid discharge valve includes an outer cylinder 1, a stainless steel float 2 is arranged in the outer cylinder 1, an interlayer 3 is arranged between the outer cylinder 1 and the stainless steel float 2, an upper positioning pin support 4 is embedded at the top of the outer cylinder 1, an upper positioning groove 5 is arranged on the upper positioning pin support 4, the upper positioning groove 5 penetrates through the upper positioning pin support 4, an organic silica gel sealing head 6 is embedded at the bottom of the outer cylinder 1, a lower positioning groove 7 is arranged on the organic silica gel sealing head 6, a circular through hole 8 is arranged at the center of the organic silica gel sealing head 6, the circular through hole 8 is communicated with the lower positioning groove 7, an upper positioning pin 9 matched with the upper positioning groove 5 is fixedly connected at the top of the stainless steel float 2, a lower positioning pin 10 matched with the lower positioning groove 7 is fixedly connected at the bottom of the stainless steel float 2, a spherical plug 11 for plugging the circular through hole 8 is fixedly connected on, the bottom of the outer cylinder 1 is provided with a liquid outlet 12, and the liquid outlet 12 is communicated with the circular through hole 8.
In this embodiment, in step S1, the automatic drain valve includes an outer cylinder 1, a stainless steel float 2 is disposed in the outer cylinder 1, an interlayer 3 is disposed between the outer cylinder 1 and the stainless steel float 2, an upper positioning pin holder 4 is embedded on the top of the outer cylinder 1, an upper positioning groove 5 is opened on the upper positioning pin holder 4, the upper positioning groove 5 penetrates through the upper positioning pin holder 4, an organic silica gel sealing head 6 is embedded on the bottom of the outer cylinder 1, a lower positioning groove 7 is opened on the organic silica gel sealing head 6, a circular through hole 8 is opened in the center of the organic silica gel sealing head 6, the circular through hole 8 is communicated with the lower positioning groove 7, an upper positioning pin 9 adapted to the upper positioning groove 5 is fixedly connected to the top of the stainless steel float 2, a lower positioning pin 10 adapted to the lower positioning groove 7 is fixedly connected to the bottom of the stainless steel float 2, a spherical plug 11 for plugging the circular through hole 8 is fixedly connected to the lower positioning pin, when the liquid-phase float-type organic silicon rubber sealing device is used, after a liquid phase flows into a cylinder bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel float 2, when buoyancy generated by the liquid phase on the stainless steel float 2 is larger than sample gas pressure and the self gravity of the stainless steel float 2, the stainless steel float 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8, in the process of discharging the liquid phase from the liquid discharge port 12, the buoyancy of the stainless steel float 2 descends along with the reduction of the liquid phase until the spherical plug 11 on the lower positioning needle 10 of the stainless steel float 2 falls back on the organic silicon rubber sealing head 6, the spherical plug 11 blocks the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing, and the liquid phase still existing in the cylinder bottom space stops being continuously discharged from the liquid discharge port 12, so that the space at the bottom of the cylinder is always kept with a liquid phase, the gas phase is blocked from flowing out from the liquid discharge port 12, the organic silica gel sealing head 6 has micro-elasticity, is antioxidant and corrosion resistant, and can ensure the linear sealing reliability in the long-term use process.
Example 3
Referring to fig. 1, an automatic gas-liquid separation method includes the following steps:
s1, introducing pressurized liquid-containing sample gas into the interlayer 3 between the outer cylinder 1 and the stainless steel buoy 2 through the upper positioning needle support 4, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support 4;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel buoy 2 and the buoyancy generated by the liquid phase on the stainless steel buoy 2 is larger than the sample gas pressure and the self gravity of the stainless steel buoy 2, the stainless steel buoy 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, and the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8;
s3, in the process that the liquid phase is discharged from the liquid discharge port 12, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy 2 is reduced until the spherical plug 11 on the lower positioning needle 10 of the stainless steel buoy 2 falls back on the organic silicon rubber sealing head 6, and the spherical plug 11 plugs the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing;
s4, the liquid phase in the bottom space stops being discharged from the liquid outlet 12, so that the liquid phase is kept in the bottom space all the time, the gas phase is blocked from flowing out from the liquid outlet 12, and the gas and the liquid are automatically separated.
In the step S1, the automatic liquid discharge valve includes an outer cylinder 1, a stainless steel float 2 is arranged in the outer cylinder 1, an interlayer 3 is arranged between the outer cylinder 1 and the stainless steel float 2, an upper positioning pin support 4 is embedded at the top of the outer cylinder 1, an upper positioning groove 5 is arranged on the upper positioning pin support 4, the upper positioning groove 5 penetrates through the upper positioning pin support 4, an organic silica gel sealing head 6 is embedded at the bottom of the outer cylinder 1, a lower positioning groove 7 is arranged on the organic silica gel sealing head 6, a circular through hole 8 is arranged at the center of the organic silica gel sealing head 6, the circular through hole 8 is communicated with the lower positioning groove 7, an upper positioning pin 9 matched with the upper positioning groove 5 is fixedly connected at the top of the stainless steel float 2, a lower positioning pin 10 matched with the lower positioning groove 7 is fixedly connected at the bottom of the stainless steel float 2, a spherical plug 11 for plugging the circular through hole 8 is fixedly connected on, the bottom of the outer cylinder 1 is provided with a liquid outlet 12, and the liquid outlet 12 is communicated with the circular through hole 8.
The organic silica gel sealing head 6 comprises a cylindrical section 13 and an arc-surface section 14, the cylindrical section 13 and the arc-surface section 14 are formed in an integrated mode, and the circular through hole 8 is located in the cylindrical section 13.
In this embodiment, the silicone sealing head 6 includes a cylindrical section 13 and an arc section 14, the cylindrical section 13 and the arc section 14 are integrally formed, and the circular through hole 8 is located on the cylindrical section 13, so that the entire silicone sealing head 6 can be tightly attached to the inner wall of the outer barrel 1, thereby achieving a good sealing effect.
Example 4
Referring to fig. 1, an automatic gas-liquid separation method includes the following steps:
s1, introducing pressurized liquid-containing sample gas into the interlayer 3 between the outer cylinder 1 and the stainless steel buoy 2 through the upper positioning needle support 4, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support 4;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel buoy 2 and the buoyancy generated by the liquid phase on the stainless steel buoy 2 is larger than the sample gas pressure and the self gravity of the stainless steel buoy 2, the stainless steel buoy 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, and the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8;
s3, in the process that the liquid phase is discharged from the liquid discharge port 12, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy 2 is reduced until the spherical plug 11 on the lower positioning needle 10 of the stainless steel buoy 2 falls back on the organic silicon rubber sealing head 6, and the spherical plug 11 plugs the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing;
s4, the liquid phase in the bottom space stops being discharged from the liquid outlet 12, so that the liquid phase is kept in the bottom space all the time, the gas phase is blocked from flowing out from the liquid outlet 12, and the gas and the liquid are automatically separated.
In the step S1, the automatic liquid discharge valve includes an outer cylinder 1, a stainless steel float 2 is arranged in the outer cylinder 1, an interlayer 3 is arranged between the outer cylinder 1 and the stainless steel float 2, an upper positioning pin support 4 is embedded at the top of the outer cylinder 1, an upper positioning groove 5 is arranged on the upper positioning pin support 4, the upper positioning groove 5 penetrates through the upper positioning pin support 4, an organic silica gel sealing head 6 is embedded at the bottom of the outer cylinder 1, a lower positioning groove 7 is arranged on the organic silica gel sealing head 6, a circular through hole 8 is arranged at the center of the organic silica gel sealing head 6, the circular through hole 8 is communicated with the lower positioning groove 7, an upper positioning pin 9 matched with the upper positioning groove 5 is fixedly connected at the top of the stainless steel float 2, a lower positioning pin 10 matched with the lower positioning groove 7 is fixedly connected at the bottom of the stainless steel float 2, a spherical plug 11 for plugging the circular through hole 8 is fixedly connected on, the bottom of the outer cylinder 1 is provided with a liquid outlet 12, and the liquid outlet 12 is communicated with the circular through hole 8.
The organic silica gel sealing head 6 comprises a cylindrical section 13 and an arc-surface section 14, the cylindrical section 13 and the arc-surface section 14 are formed in an integrated mode, and the circular through hole 8 is located in the cylindrical section 13.
The length of the upper positioning needle 9 is the same as that of the upper positioning needle bracket 4, and the length of the lower positioning needle 10 is the same as that of the lower positioning needle 10 bracket.
In this embodiment, the length of the upper positioning pin 9 is the same as that of the upper positioning pin holder 4, the length of the lower positioning pin 10 is the same as that of the lower positioning pin 10 holder, so that the upper positioning pin 9 and the lower positioning pin 10 of the stainless steel buoy 2 can be correspondingly limited and located in the upper positioning groove 5 and the lower positioning groove 7, respectively, and the movement space on the upper positioning groove 5 limits the stainless steel buoy 2 from rising to the highest position, i.e., the highest position allowed by the stainless steel buoy 2, and this position limits the spherical plug 11 of the lower positioning pin 10 from leaving the lower positioning groove 7; on the contrary, when the spherical plug 11 of the lower positioning needle 10 is located to block the circular through hole 8 of the organic silica gel sealing head 6 to realize linear sealing, the upper positioning needle 9 can not leave the upper positioning groove 5, so that the stainless steel buoy 2 is always kept in a vertical state in the up-and-down floating process, and the gas-liquid separation efficiency is favorably improved.
Example 5
Referring to fig. 1, an automatic gas-liquid separation method includes the following steps:
s1, introducing pressurized liquid-containing sample gas into the interlayer 3 between the outer cylinder 1 and the stainless steel buoy 2 through the upper positioning needle support 4, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support 4;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel buoy 2 and the buoyancy generated by the liquid phase on the stainless steel buoy 2 is larger than the sample gas pressure and the self gravity of the stainless steel buoy 2, the stainless steel buoy 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, and the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8;
s3, in the process that the liquid phase is discharged from the liquid discharge port 12, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy 2 is reduced until the spherical plug 11 on the lower positioning needle 10 of the stainless steel buoy 2 falls back on the organic silicon rubber sealing head 6, and the spherical plug 11 plugs the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing;
s4, the liquid phase in the bottom space stops being discharged from the liquid outlet 12, so that the liquid phase is kept in the bottom space all the time, the gas phase is blocked from flowing out from the liquid outlet 12, and the gas and the liquid are automatically separated.
In the step S1, the automatic liquid discharge valve includes an outer cylinder 1, a stainless steel float 2 is arranged in the outer cylinder 1, an interlayer 3 is arranged between the outer cylinder 1 and the stainless steel float 2, an upper positioning pin support 4 is embedded at the top of the outer cylinder 1, an upper positioning groove 5 is arranged on the upper positioning pin support 4, the upper positioning groove 5 penetrates through the upper positioning pin support 4, an organic silica gel sealing head 6 is embedded at the bottom of the outer cylinder 1, a lower positioning groove 7 is arranged on the organic silica gel sealing head 6, a circular through hole 8 is arranged at the center of the organic silica gel sealing head 6, the circular through hole 8 is communicated with the lower positioning groove 7, an upper positioning pin 9 matched with the upper positioning groove 5 is fixedly connected at the top of the stainless steel float 2, a lower positioning pin 10 matched with the lower positioning groove 7 is fixedly connected at the bottom of the stainless steel float 2, a spherical plug 11 for plugging the circular through hole 8 is fixedly connected on, the bottom of the outer cylinder 1 is provided with a liquid outlet 12, and the liquid outlet 12 is communicated with the circular through hole 8.
The organic silica gel sealing head 6 comprises a cylindrical section 13 and an arc-surface section 14, the cylindrical section 13 and the arc-surface section 14 are formed in an integrated mode, and the circular through hole 8 is located in the cylindrical section 13.
The length of the upper positioning needle 9 is the same as that of the upper positioning needle bracket 4, and the length of the lower positioning needle 10 is the same as that of the lower positioning needle 10 bracket.
The upper end of the stainless steel buoy 2 is arc-shaped.
The cross section of the upper positioning groove 5 is trapezoidal, and the cross section of the lower positioning groove 7 is rectangular.
In the embodiment, the upper end of the stainless steel float 2 is in a circular arc shape, and by adopting the straight-through structure, when the pressurized liquid-containing gas carries particulate impurities, the particulate impurities are not easy to stay and accumulate, and the straight-through structure without external force and lever can discharge the particulate impurities from the liquid discharge port 12 along with the liquid phase, so that the liquid-containing gas is kept smooth for long-term use and is not blocked.
The cross section of the upper positioning groove 5 is trapezoidal, and the cross section of the lower positioning groove 7 is rectangular, so that a better limiting effect can be achieved, and the stainless steel buoy 2 can be ensured to be always kept in a vertical state in the up-and-down floating process.
Example 6
Referring to fig. 1, an automatic gas-liquid separation method includes the following steps:
s1, introducing pressurized liquid-containing sample gas into the interlayer 3 between the outer cylinder 1 and the stainless steel buoy 2 through the upper positioning needle support 4, allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support 4;
s2, when the liquid phase flows into the bottom space between the bottom of the outer cylinder 1 and the bottom of the stainless steel buoy 2 and the buoyancy generated by the liquid phase on the stainless steel buoy 2 is larger than the sample gas pressure and the self gravity of the stainless steel buoy 2, the stainless steel buoy 2 and the spherical plug 11 on the lower positioning needle 10 float and rise, and the liquid phase is discharged from the liquid discharge port 12 at the bottom of the outer cylinder 1 through the circular through hole 8;
s3, in the process that the liquid phase is discharged from the liquid discharge port 12, along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy 2 is reduced until the spherical plug 11 on the lower positioning needle 10 of the stainless steel buoy 2 falls back on the organic silicon rubber sealing head 6, and the spherical plug 11 plugs the circular through hole 8 on the organic silicon rubber sealing head 6 to recover linear sealing;
s4, the liquid phase in the bottom space stops being discharged from the liquid outlet 12, so that the liquid phase is kept in the bottom space all the time, the gas phase is blocked from flowing out from the liquid outlet 12, and the gas and the liquid are automatically separated.
In the step S1, the automatic liquid discharge valve includes an outer cylinder 1, a stainless steel float 2 is arranged in the outer cylinder 1, an interlayer 3 is arranged between the outer cylinder 1 and the stainless steel float 2, an upper positioning pin support 4 is embedded at the top of the outer cylinder 1, an upper positioning groove 5 is arranged on the upper positioning pin support 4, the upper positioning groove 5 penetrates through the upper positioning pin support 4, an organic silica gel sealing head 6 is embedded at the bottom of the outer cylinder 1, a lower positioning groove 7 is arranged on the organic silica gel sealing head 6, a circular through hole 8 is arranged at the center of the organic silica gel sealing head 6, the circular through hole 8 is communicated with the lower positioning groove 7, an upper positioning pin 9 matched with the upper positioning groove 5 is fixedly connected at the top of the stainless steel float 2, a lower positioning pin 10 matched with the lower positioning groove 7 is fixedly connected at the bottom of the stainless steel float 2, a spherical plug 11 for plugging the circular through hole 8 is fixedly connected on, the bottom of the outer cylinder 1 is provided with a liquid outlet 12, and the liquid outlet 12 is communicated with the circular through hole 8.
The organic silica gel sealing head 6 comprises a cylindrical section 13 and an arc-surface section 14, the cylindrical section 13 and the arc-surface section 14 are formed in an integrated mode, and the circular through hole 8 is located in the cylindrical section 13.
The length of the upper positioning needle 9 is the same as that of the upper positioning needle bracket 4, and the length of the lower positioning needle 10 is the same as that of the lower positioning needle 10 bracket.
The upper end of the stainless steel buoy 2 is arc-shaped.
The cross section of the upper positioning groove 5 is trapezoidal, and the cross section of the lower positioning groove 7 is rectangular.
The outer cylinder 1 is a stainless steel outer cylinder.
The lower extreme of stainless steel flotation pontoon 2 is circular-arc, and the radian size of 2 lower extremes of stainless steel flotation pontoon is the same with 14 radian sizes of cambered surface section of silicone rubber sealing head 6.
The embodiment is the best mode, the outer cylinder 1 is a stainless steel outer cylinder, and the stainless steel outer cylinder has good corrosion resistance and can bear gas-liquid separation at higher pressure and temperature, so that the long-term use stability of the drain valve can be guaranteed.
The lower extreme of stainless steel flotation pontoon 2 is circular-arcly, and the radian size of 2 lower extremes of stainless steel flotation pontoon is the same with the 14 radian sizes of cambered surface sections of sealed head 6 of organic silica gel, and the circular through-hole 8 of sealed head 6 of organic silica gel is sealed to spherical end cap 11 on the lower pilot pin 10, forms linear sealed in-process, can reduce the impact that the decline of stainless steel flotation pontoon 2 caused, does benefit to the reliability of guaranteeing whole flowing back valve long-term use.
Claims (8)
1. An automatic gas-liquid separation method is characterized by comprising the following steps:
s1, introducing the pressurized liquid-containing sample gas into an interlayer (3) between the outer cylinder (1) and the stainless steel buoy (2) through the upper positioning needle support (4), allowing the liquid phase to flow downwards under the action of gravity, and allowing the gas phase to rise back and be discharged through the upper positioning needle support (4);
s2, when the liquid phase flows into the space at the bottom of the outer cylinder (1) and the bottom of the stainless steel buoy (2), the buoyancy generated by the liquid phase on the stainless steel buoy (2) is larger than the sample gas pressure and the gravity of the stainless steel buoy (2), the stainless steel buoy (2) and the spherical plugs (11) on the lower positioning needles (10) float and rise, and the liquid phase is discharged from a liquid discharge port (12) at the bottom of the outer cylinder (1) through the circular through hole (8);
s3, in the process that the liquid phase is discharged from the liquid discharge port (12), along with the reduction of the liquid phase, the buoyancy of the stainless steel buoy (2) is reduced until the spherical plug (11) on the lower positioning needle (10) of the stainless steel buoy (2) falls back on the organic silica gel sealing head (6), and the spherical plug (11) plugs the circular through hole (8) on the organic silica gel sealing head (6) to recover linear sealing;
s4, stopping continuously discharging the liquid phase in the cylinder bottom space from the liquid discharging port (12), keeping the cylinder bottom space with the liquid phase, blocking the gas phase from flowing out from the liquid discharging port (12), and realizing the automatic separation of gas and liquid.
2. The automatic gas-liquid separation method according to claim 1, characterized in that: in the step S1, the automatic liquid discharge valve comprises an outer barrel (1), a stainless steel float bowl (2) is arranged in the outer barrel (1), an interlayer (3) is arranged between the outer barrel (1) and the stainless steel float bowl (2), an upper positioning needle support (4) is embedded at the top of the outer barrel (1), an upper positioning groove (5) is formed in the upper positioning needle support (4), the upper positioning groove (5) penetrates through the upper positioning needle support (4), an organic silica gel sealing head (6) is embedded at the bottom of the outer barrel (1), a lower positioning groove (7) is formed in the organic silica gel sealing head (6), a circular through hole (8) is formed in the center of the organic silica gel sealing head (6), the circular through hole (8) is communicated with the lower positioning groove (7), an upper positioning needle (9) matched with the upper positioning groove (5) is fixedly connected to the top of the stainless steel float bowl (2), a lower positioning needle (10) matched with the lower positioning groove (7) is fixedly connected to the bottom of the stainless steel, the lower positioning needle (10) is fixedly connected with a spherical plug (11) used for plugging the circular through hole (8), the bottom of the outer cylinder (1) is provided with a liquid discharge port (12), and the liquid discharge port (12) is communicated with the circular through hole (8).
3. The automatic gas-liquid separation method according to claim 1, characterized in that: the organic silica gel sealing head (6) comprises a cylindrical section (13) and an arc surface section (14), the cylindrical section (13) and the arc surface section (14) are formed in an integrated mode, and the circular through hole (8) is located in the cylindrical section (13).
4. The automatic gas-liquid separation method according to claim 1, characterized in that: the length of the upper positioning needle (9) is the same as that of the upper positioning needle bracket (4), and the length of the lower positioning needle (10) is the same as that of the lower positioning needle (10) bracket.
5. The automatic gas-liquid separation method according to claim 1, characterized in that: the upper end of the stainless steel buoy (2) is arc-shaped.
6. The automatic gas-liquid separation method according to claim 1, characterized in that: the cross section of the upper positioning groove (5) is trapezoidal, and the cross section of the lower positioning groove (7) is rectangular.
7. The automatic gas-liquid separation method according to claim 1, characterized in that: the outer cylinder (1) is a stainless steel outer cylinder.
8. A gas-liquid automatic separation method according to claim 3, characterized in that: the lower extreme of stainless steel flotation pontoon (2) is circular-arc, and the radian size of stainless steel flotation pontoon (2) lower extreme is the same with cambered surface section (14) radian size of silicone rubber sealing head (6).
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| CN202110217763.1A CN112915644A (en) | 2021-02-26 | 2021-02-26 | Automatic gas-liquid separation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116371120A (en) * | 2023-05-23 | 2023-07-04 | 科伟达智能洗净技术(深圳)有限公司 | Gas-liquid separation equipment |
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| CN112377798A (en) * | 2020-12-03 | 2021-02-19 | 艾肯（江苏）工业技术有限公司 | Float type drain valve |
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| CN1034260A (en) * | 1988-01-17 | 1989-07-26 | 田中学 | The constructive method of high-efficient vaporized heat supply system and device thereof |
| CN2044677U (en) * | 1988-12-23 | 1989-09-20 | 周韶华 | Automatically water-draining and gas-exhausting dual-purpose valve |
| CN201281223Y (en) * | 2008-05-28 | 2009-07-29 | 田钟荣 | Barrel-type drainage valve |
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