CN110193258B - Gas-liquid separation device and gas-liquid separation system - Google Patents
Gas-liquid separation device and gas-liquid separation system Download PDFInfo
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- CN110193258B CN110193258B CN201910421676.0A CN201910421676A CN110193258B CN 110193258 B CN110193258 B CN 110193258B CN 201910421676 A CN201910421676 A CN 201910421676A CN 110193258 B CN110193258 B CN 110193258B
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- 239000007788 liquid Substances 0.000 title claims abstract description 368
- 238000000926 separation method Methods 0.000 title claims abstract description 162
- 238000007789 sealing Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 97
- 238000012545 processing Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
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Abstract
The invention discloses a gas-liquid separation device and a gas-liquid separation system, wherein the gas-liquid separation device comprises a separator main body, a gas-liquid inlet, a gas delivery pipe and a liquid delivery pipe; the gas-liquid separation system comprises a gas-liquid separation device. The height difference h between the air inlet of the gas delivery pipe and the liquid inlet of the liquid delivery pipe is set specifically, so that after the gas-liquid mixed fluid enters the separation cavity through the gas-liquid inlet, the gas flows upwards to enter the gas delivery pipe through the air inlet after the gas and the liquid are separated, the liquid flows downwards to enter the liquid delivery pipe through the liquid inlet, the maximum difference between the pressure of the air outlet and the pressure of the liquid outlet falls into the adjustment range of the height of the separator main body, the liquid level of the gas-liquid separation can be automatically adjusted to be always between the air inlet and the liquid inlet, the manual participation control is not needed, and the valve is not needed to be arranged to adjust the height of the liquid level of the gas-liquid separation, so that the gas-liquid separation can be stably operated.
Description
Technical Field
The invention relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation device and a gas-liquid separation system.
Background
In the fields of petroleum, natural gas (coalbed methane), chemical and other production, there is often a co-existence of gases and liquids in the industrial and mining environment. In the production process, the process requirements of separating and conveying gas and liquid respectively are often met.
The gas-liquid separation system has the influence of objective factors such as difference of gas outlet pressure and liquid outlet pressure, pressure fluctuation, change of air flow and liquid flow, and the like, so that the liquid level of the gas-liquid separation in the separator fluctuates.
For example, when the gas outlet pressure increases (or the liquid outlet pressure decreases), the gas-liquid separation liquid level in the separator decreases; when the pressure of the air outlet is reduced (or the pressure of the liquid outlet is increased), the liquid level of the gas-liquid separation in the separator is increased, and when the liquid level in the separator reaches the liquid inlet of the liquid delivery pipe or the air inlet of the gas delivery pipe of the separator, the liquid outlet of the liquid delivery pipe of the separator is subjected to air inlet or the air outlet of the gas delivery pipe is subjected to liquid inlet, so that the technical requirements of the gas-liquid separation cannot be met.
Therefore, in order to ensure the separation effect of the separator, the air outlet amount of the air outlet and the liquid outlet amount of the liquid outlet are generally required to be regulated and controlled according to the change condition of the liquid level in the separator. The conventional gas-liquid separation device is mainly characterized in that an electric valve or a floating ball is respectively arranged on a gas delivery pipe and a liquid delivery pipe, and the air outlet quantity of an air outlet and the liquid outlet quantity of a liquid outlet are manually controlled and regulated, so that the liquid level of gas-liquid separation is positioned between the air inlet of the gas delivery pipe and the liquid inlet of the liquid delivery pipe, and the stable operation of the separation conveying device is facilitated. The liquid level height of the gas-liquid separation is controlled and regulated by the valve, and the valve is always opened or closed although the requirements of the gas-liquid separation and transportation are met, the valve needs to be replaced frequently, the operation cost of the separation and transportation device is easy to cause, and the structure of the gas-liquid separation system is complex and the technological requirements are high.
Disclosure of Invention
In the existing gas-liquid separation device, the liquid level of gas-liquid separation is required to be adjusted and controlled by means of a valve, so that the gas-liquid separation device is complex in structure and high in cost.
To this end, the invention provides a gas-liquid separation device comprising
A separator body having a vertically extending and closed separation chamber;
A gas-liquid inlet arranged on the separator main body and communicated with the separation cavity;
the gas outlet pipe is communicated with the separation cavity, and the gas outlet is positioned outside the separator main body;
the liquid outlet pipe is communicated with the separation cavity and positioned below the air inlet, and the liquid outlet is positioned outside the separator main body and above the liquid inlet;
The height difference h between the air inlet and the liquid inlet meets the following conditions:
Wherein the P1 0、P11 is the pressure of the air outlet (32), the P2 0、P21 is the pressure of the liquid outlet, and P1 0＜P20,P11＞P21
Optionally, in the above gas-liquid separation device, the gas inlet is disposed near a top inner wall surface of the separation chamber;
the liquid inlet is arranged near the bottom of the separation cavity.
Optionally, in the above gas-liquid separation device, a portion of the gas delivery pipe extends into the separation chamber, and the portion extends vertically and has the gas inlet at a top thereof; and/or
And a part of the liquid delivery pipe extends into the separation cavity, extends vertically and is provided with the liquid inlet at the bottom.
Optionally, in the above gas-liquid separation device, the liquid outlet is not lower than the air inlet in the vertical direction.
Optionally, in the above gas-liquid separation device, the liquid delivery pipe is hermetically penetrating through a side wall of the separation cavity; and/or
The gas delivery pipe is arranged on the side wall of the separation cavity in a sealing penetrating mode, and the gas outlet is located below the gas inlet.
Optionally, the gas-liquid separation device further comprises a gas-liquid conveying pipe penetrating through the side wall of the separation cavity in a sealing manner, and one end of the gas-liquid conveying pipe, which is located outside the separator body, is used as the gas-liquid inlet.
Optionally, in the above gas-liquid separation device, a drain outlet and a sealing cover sealed and detachably arranged on the drain outlet are arranged on the bottom of the separation cavity.
Optionally, in the gas-liquid separation device, at least one first valve is disposed on a portion of the gas delivery pipe extending out of the separation chamber; and/or
At least one second valve is also arranged on the part of the liquid delivery pipe extending out of the separation cavity.
Optionally, the gas-liquid separation device further comprises a bracket, and the bottom of the separator main body is mounted on the bracket.
The invention provides a gas-liquid separation system, which comprises
A gas-liquid separation apparatus according to any one of the above;
The gas collecting device is communicated with the gas outlet;
and the liquid collecting device is communicated with the liquid outlet.
The technical scheme of the invention has the following advantages:
1. the invention provides a gas-liquid separation device, which comprises a separator main body, a gas-liquid inlet, a gas delivery pipe and a liquid delivery pipe; the separator body has a vertically extending and closed separation chamber; the gas-liquid inlet is arranged on the separator main body and is communicated with the separation cavity; the gas inlet of the gas delivery pipe is communicated with the separation cavity, and the gas outlet is positioned outside the separator main body; the liquid inlet of the liquid delivery pipe is communicated with the separation cavity and is positioned below the air inlet, and the liquid outlet is positioned outside the separator main body and above the liquid inlet; the height difference h between the air inlet and the liquid inlet meets the following conditions:
Wherein, P1 0、P11 is the pressure of the air outlet (32), P2 0、P21 is the pressure of the liquid outlet, and P1 0＜P20,P11＞P21.
The gas-liquid separation device with the structure has the advantages that the height difference h between the gas inlet and the liquid inlet is specifically set, so that after gas-liquid mixed fluid enters the separation cavity through the gas inlet, gas flows upwards to enter the gas delivery pipe through the gas inlet after being separated from liquid, liquid flows downwards to enter the liquid delivery pipe through the liquid inlet, the maximum difference between the pressure of the gas outlet and the pressure of the liquid outlet falls into the adjustment range of the height of the separator main body, the liquid level of gas-liquid separation can be automatically adjusted to be always between the gas inlet and the liquid inlet, manual participation control is not needed, and the valve is not needed to be arranged to adjust the height of the liquid level of gas-liquid separation, so that the gas-liquid separation can be stably operated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a gas-liquid separation apparatus according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the gas-liquid separator in FIG. 1 in a limit position
FIG. 3 is a schematic view showing the structure of a gas-liquid separation apparatus according to a second embodiment of the present invention;
fig. 4 is a schematic structural view of a gas-liquid separation device according to a third embodiment of the present invention;
fig. 5 is a schematic structural view of a gas-liquid separation device according to a fourth embodiment of the present invention;
Reference numerals illustrate:
1-a separator body; 11-a separation chamber; 12-a sewage outlet;
2-gas-liquid inlet; 21-a gas-liquid conveying pipe;
3-a gas delivery tube; 31-air inlet; 32-an air outlet;
4-a liquid delivery tube; 41-liquid inlet; 42-a liquid outlet;
51-first position; 52-a second position;
6-a bracket;
71-a first valve; 72-second valve.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The present embodiment provides a gas-liquid separation device, as shown in fig. 1, comprising a separator body 1, a gas-liquid inlet 2, a gas delivery pipe 3, and a liquid delivery pipe 4.
The separator main body 1 is provided with a vertically extending and closed separating cavity 11, for example, the top of the separator main body 1 is an arc closed end, the bottom of the separator main body is a straight end, a sewage outlet 12 is arranged on the bottom of the separator main body 1, and a detachable sealing cover is arranged on the sewage outlet 12 in a sealing manner, so that regular cleaning is conveniently carried out in the separating cavity. Alternatively, the separation chamber 11 is entirely cylindrical.
The gas-liquid inlet 2 is provided on a side wall of the separator body 1 and communicates with the separation chamber 11 for inputting a gas-liquid mixed fluid into the separation chamber 11. For example, a mounting hole is formed in the side wall of the separator main body 1, the gas-liquid conveying pipe 21 is arranged in the mounting hole in a penetrating manner, one end of the gas-liquid conveying pipe 21, which is located outside the separator main body 1, serves as a gas-liquid inlet 2, and the other end of the gas-liquid conveying pipe, which extends into the separation cavity 11, serves as a gas-liquid outlet. The gas-liquid conveying pipe 21 inputs external gas-liquid mixed fluid into the separation cavity 11, the gas-liquid mixed fluid is in the separation cavity 11, the gas flows upwards due to the fact that the density of the gas is smaller than that of the liquid, the liquid is sunk at the lower part of the separation cavity 11 under the gravity, gas-liquid separation is achieved, and the separation cavity 11 is divided into a liquid chamber and an air chamber from bottom to top by taking the liquid level of the gas-liquid separation as a boundary.
Because the gas-liquid content at the gas-liquid inlet 2 changes, or the gas outlet pressure of the gas outlet 32 and the pressure of the liquid outlet 42 change, the liquid level of the gas-liquid separation will float up and down, so that the liquid level of the gas-liquid separation is a relatively dynamic liquid level.
As shown in fig. 1, a gas delivery pipe 3 is arranged on the side wall of the separator main body 1 in a sealing manner, the part of the gas delivery pipe extending into the separation cavity 11 is arranged in a vertical extending manner, the top of the part is used as a gas inlet 31, and the gas inlet 31 is communicated with the gas chamber; the gas inlet is arranged near the top inner wall surface of the separator main body 1, the other end of the gas delivery pipe outside the separator main body 1 is used as a gas outlet 32, the gas outlet 32 is positioned below the gas inlet 31, and the gas delivery pipe is staggered with the gas-liquid delivery pipe 21 in the separation cavity 11. Optimally, the gas outlet 32 is located below the gas-liquid inlet 2.
As shown in fig. 1, the liquid delivery pipe 4 is arranged on the side wall of the separator body 1 in a sealing manner, but avoids the gas-liquid delivery pipe 21 and the gas delivery pipe 3, the part of the liquid delivery pipe 4 extending into the separation cavity 11 extends vertically, the bottom of the part is used as a liquid inlet 41, the liquid inlet 41 is arranged close to the inner wall surface of the bottom of the separator body 1, the other end of the liquid delivery pipe outside the separator body 1 is used as a liquid outlet 42, and the liquid outlet 42 is higher than the liquid inlet 41.
The air inlet 31 and the liquid inlet 41 are respectively reserved between the top and the bottom of the separator main body 1, a first gap and a second gap are reserved between the air inlet and the bottom of the separator main body, the first gap is arranged to facilitate gas in the gas chamber to enter the gas delivery pipe 3, and the second gap is arranged to facilitate solution in the liquid chamber to enter the liquid delivery pipe 4.
Meanwhile, the height difference h between the air inlet 31 and the liquid inlet 41 satisfies:
Wherein, P1 0、P11 is the pressure of the air outlet (32), P2 0、P21 is the pressure of the liquid outlet, and P1 0＜P20,P11＞P21.
Where P1 is the pressure at the outlet 32 and P2 is the pressure at the outlet 42. The applicant finds that the liquid level of the gas-liquid separation can be automatically adjusted as long as the height difference h between the liquid inlet and the liquid inlet is set to be high enough, and the liquid level is always positioned between the liquid inlet and the liquid inlet, and the concrete principle is as follows:
As shown in fig. 2, with the height of the liquid outlet 42 as a reference, the initial position of the gas-liquid separation liquid level is a, when the pressure P2 0 of the liquid outlet 42 is greater than the pressure P1 0 of the gas outlet 32, and the difference between P2 0 and P1 0 reaches a limit value, the liquid level of the gas-liquid separation rises from the position a to a limit position B, and the limit position B is lower than the gas inlet 31, and at this time, the pressure P2 0 of the liquid outlet 42 and the pressure P1 0 of the gas outlet 32 have the following relation:
If P 0＝P10 +ρgx1, then x1= (P2 0－P10)/(ρg), where ρ is the density of the liquid in the liquid chamber in the separation chamber, that is, when the liquid level reaches the limit position B and the distance X1 between the liquid level and the liquid outlet 42 is (P2 0－P10)/(ρg), when the distance h1 between the gas inlet 31 and the liquid outlet 42 is greater than X1, it is ensured that the liquid level of the gas-liquid separation only reaches the limit position B even if the difference between the pressure of the liquid outlet 42 and the pressure of the gas outlet reaches the limit value, and does not reach the gas inlet 31, thereby avoiding the phenomenon that the separation chamber 11 is fully filled with the liquid and the liquid is discharged through the gas inlet 31 into the gas delivery pipe 3.
Conversely, when the pressure P1 1 of the air outlet 32 is greater than the pressure P2 1 of the liquid outlet, and the difference between P1 1 and P2 1 reaches the limit value, the liquid level of the air-liquid separation drops from the position a to the limit position C, where the limit position C is higher than the liquid inlet 41, the distance between the limit position C and the liquid outlet 42 is X2, and the pressure P2 1 of the liquid outlet 42 and the pressure P1 1 of the air outlet 32 have the following relationship:
P 1＝P21 +ρgx2, x2= (p1 1－P21)/(ρg), where ρ is the density of the liquid in the liquid chamber in the separation chamber. That is, when the liquid level reaches the limit position C, and when the distance X2 between the liquid level and the liquid outlet 42 is (P1 1－P21)/(ρg), and when the distance h2 between the liquid inlet 41 and the liquid outlet 42 is greater than X2, it is ensured that the liquid level of the gas-liquid separation only reaches the limit position C and does not reach the liquid inlet 41 even when the pressure difference between the gas outlet 32 and the liquid outlet reaches the limit value, and the limit position C is always higher than the liquid inlet 41, so that the separation chamber 11 is prevented from being completely filled with gas, and the gas is discharged through the liquid inlet 41 into the liquid delivery pipe 4.
From the above analysis, it is clear that the difference in height h=h1+h2 between the intake port 31 and the intake port 41 is h > (x1+x2) because h1 > X1 and h2 > X2, so long as the difference in height h between the intake port 31 and the intake port 41 satisfies: In this case, the gas-liquid separation liquid level can be ensured to be always between the liquid inlet 41 and the gas inlet 31 without providing valves on the gas delivery pipe 3 and the liquid delivery pipe 4, the separation effect of the separator can be ensured, the gas-liquid separation liquid level can be automatically adjusted without a control structure, and the flow rate of the gas delivery pipe 3 or the liquid delivery pipe 4 can be automatically adjusted only by the height of the separator, thereby adjusting the position of the gas-liquid separation liquid level.
In the actual use process, according to different working condition conditions, the value of h can be obtained by obtaining the P2 0、P10、P11、P21 under each working condition through multiple tests. That is, the variation range of the liquid level of the gas-liquid separation of the separator depends on the variation range of the pressure of the gas outlet of the gas delivery pipe and the liquid outlet of the liquid delivery pipe, or the variation range of the gas outlet and the liquid outlet, because the separator has enough height difference h, when the pressure of the gas outlet and the liquid outlet or the variation range of the gas outlet and the liquid outlet are changed, the variation range of the liquid level in the separator is always between the liquid inlet of the liquid delivery pipe and the gas inlet of the gas delivery pipe, so that the separated gas and liquid are ensured to enter the gas collecting system and the liquid collecting system through the gas inlet and the liquid inlet respectively, and the gas-liquid separation and the transportation of the separator are enabled to stably run under the condition of unmanned control.
As shown in fig. 1, the separator further comprises a bracket 6, the bottom of the separator main body 1 is mounted on the bracket 6, for example, the bracket comprises four brackets which are circumferentially arranged, the tops of all the brackets are fixed together, and the lower parts of all the brackets are fixed together, so that the separator main body 1 is overhead above the ground, the sewage drain 12 is lifted, and the disassembly or the mounting of the sealing cover is facilitated when the separation cavity 11 of the separator main body 1 needs to be cleaned.
In the gas-liquid separation device of this embodiment, the height difference h between the gas inlet 31 and the liquid inlet 41 is specifically set, so that after the gas-liquid mixed fluid enters the separation chamber 11 through the gas-liquid inlet 2, the gas flows upward through the gas inlet 31 into the gas delivery pipe 3 after the gas and the liquid are separated, the liquid flows downward through the liquid inlet 41 into the liquid delivery pipe 4, the maximum difference between the pressure of the gas outlet 32 and the pressure of the liquid outlet 42 falls into the adjustment range of the height of the separator main body 1, the liquid level of the gas-liquid separation can be automatically adjusted to be always between the gas inlet 31 and the liquid inlet 41, no human participation is required, and no valve is required to be set to adjust the height of the liquid level of the gas-liquid separation, so that the gas-liquid separation can be stably operated.
That is, when the pressure of the air outlet is increased or the air outlet amount of the air outlet is increased (or the pressure of the liquid outlet is reduced or the liquid outlet amount is reduced), the pressure of the air outlet 32 is larger than the pressure of the liquid outlet, the pressure difference between the air outlet and the liquid outlet is increased, the liquid level of the gas-liquid separation in the separation cavity is reduced from the original initial position A to the first position 51, but the position where the liquid level is reduced is still higher than the liquid inlet 41; when the pressure of the liquid outlet 42 is increased or the water yield is increased (or the pressure of the air outlet is reduced or the air outlet air output is reduced), the pressure of the liquid outlet is larger than the pressure of the air outlet, the pressure difference between the liquid outlet and the air outlet is increased, the liquid level of the gas-liquid separation in the separator is increased from the original initial position A to the second position 52, but the second position 52 is not higher than the air inlet 31, and the floating of the liquid level caused by the difference between the pressure of the air outlet 32 and the pressure of the liquid outlet 42 can be automatically regulated due to the design of the height difference between the air inlet 31 and the liquid inlet 41, so that the liquid level of the gas-liquid separation is always between the liquid inlet 41 and the air inlet 31, passive control and regulation are realized, manual participation control is not needed, and the process of the gas-liquid separation and transportation is greatly simplified.
As a first alternative embodiment of example 1, it is also possible to provide the gas-liquid inlet directly in the separator body wall without providing a gas-liquid delivery pipe.
As a second alternative embodiment of example 1, the gas delivery tube may have other shapes, such as an S-shaped tube, and the gas inlet may be provided on a side wall of the gas delivery tube; similarly, the liquid delivery tube may have other shapes, such as an S-shaped tube, and the liquid inlet may be provided on the side wall of the liquid delivery tube, as long as the liquid outlet is higher than the liquid inlet, and lower than the air inlet.
Example 2
The present embodiment provides a gas-liquid separation apparatus, which is different from the gas-liquid separation apparatus provided in embodiment 1 in that:
In preparing the gas-liquid separation apparatus, the height of the separator main body 1 needs to satisfy the above conditions, and in view of the fact that the height of the separator main body 1 is too high to facilitate the processing or increase in the difficulty of the processing, when the height of the processing is prevented from not meeting the above requirements, when the pressure P2 3 of the liquid outlet 42 is greater than the pressure P1 3 of the gas outlet 32, and when the difference between P2 3 and P1 3 is greater than the above limit value (P2 0－P10), the pressure difference exceeds the adjustment range of the liquid column in the vertical separator, as shown in fig. 3, at least one first valve 71 is provided on the portion of the gas delivery pipe 3 extending outside the separation chamber 11. For example, the first valve is a solenoid valve, ball valve, gate valve, shut-off valve, butterfly valve, etc.
Under normal conditions, if the first valve is in an open state, when the first valve is needed to assist in adjusting the liquid level, the opening degree of the first valve 71 is reduced to reduce the air outlet amount of the air outlet, the pressure of the air outlet is increased to offset the pressure difference between the pressure of a part of the liquid outlet and the pressure of the air outlet, the liquid level of the air-liquid separation is adjusted in an auxiliary manner, so that the difference between P2 3 and P1 3 falls within the limit value range of (P2 0－P10) and further falls within the adjustment range of the height of the separator main body 1, and at this time, the first valve maintains the opening degree.
Example 3
The present embodiment provides a gas-liquid separation apparatus, which is different from the gas-liquid separation apparatus provided in embodiment 2 in that:
In preparing the gas-liquid separation device, the height of the separator body 1 needs to satisfy the above conditions, and in view of the fact that the height of the separator body 1 is too high, the processing is inconvenient or the processing difficulty increases, and when the processing height does not meet the above requirements, the difference between the pressure of the gas outlet 32 and the pressure of the liquid outlet 42 is prevented from exceeding the adjustment range of the height of the separator body 1.
For example, when the pressure P1 2 at the gas outlet is greater than the pressure P2 2 at the liquid outlet and the difference between P1 2 and P2 2 is greater than the above-mentioned limit value (P1 1－P21), the pressure difference exceeds the adjustment range of the liquid column in the vertical separator, as shown in fig. 4, at least one second valve 72 may be further provided on the portion of the liquid delivery pipe extending outside the separation chamber 11.
For example, the second valve is an electromagnetic valve, a ball valve, a gate valve, a stop valve, a butterfly valve, etc., under normal conditions, the second valve is in an open state, if the second valve is required to assist in adjusting the liquid level, the opening degree of the second valve 72 is reduced, the resistance of the liquid flowing in the liquid delivery pipe is increased, the liquid outlet liquid amount is reduced, the pressure of the liquid outlet is increased, so as to offset the pressure difference between the pressure of a part of the air outlet and the pressure of the liquid outlet, the liquid level of the gas-liquid separation is assisted to be adjusted, the difference between the pressure P1 2 of the air outlet and the pressure P2 2 of the liquid outlet falls within the limit value range of the (P1 1－P21), and then falls within the height adjusting range of the separator main body 1, and the second valve can maintain the opening degree.
Or the first valve and the second valve can be arranged on the gas delivery pipe 3 and the liquid delivery pipe 4 respectively, when any valve does not participate in auxiliary adjustment of the liquid level of gas-liquid separation, the first valve and the second valve are in an open state and can be fully opened or can be opened to a certain opening degree, if the liquid level of auxiliary gas-liquid separation is needed, the opening degree of the corresponding valve is only required to be reduced, and the gas outlet amount or the liquid outlet amount of a pipeline where the valve is positioned is reduced.
Example 4
The present embodiment provides a gas-liquid separation apparatus which is different from the gas-liquid separation apparatus of any one of embodiments 1 to 3 in that:
As shown in fig. 5, the liquid outlet 42 of the liquid delivery pipe 4 is vertically above the air inlet 31, or the liquid outlet 42 may be vertically flush with the air inlet 31, so long as the h is satisfied, the height of the liquid level of the gas-liquid separation of the separator can be automatically adjusted, and no artificial participation is required.
Example 5
The present embodiment provides a gas-liquid separation system, including the gas-liquid separation device provided in embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4, a gas collecting device, and a liquid collecting device. Wherein the gas collecting device is communicated with the gas outlet 32; the liquid collecting device is communicated with the liquid outlet 42. For example, the gas collecting device is a gas storage tank with a sealed cavity, and the liquid outlet device is a liquid storage tank with a sealed cavity.
In the gas-liquid separation system in this embodiment, due to the adoption of the gas-liquid separation device in the above embodiment, when the gas-liquid separation system separates the gas-liquid mixed fluid, the height of the liquid level of the gas-liquid separation can be automatically adjusted through the height between the liquid inlet 41 and the air inlet 31 in the separator main body 1, so that the liquid level of the gas-liquid separation is always between the air inlet 31 and the liquid inlet 41, and the stable operation of the gas-liquid separation process can be realized without the participation of people.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A gas-liquid separation apparatus, comprising:
a separator body (1) having a vertically extending and closed separation chamber (11);
A gas-liquid inlet (2) which is arranged on the separator main body (1) and is communicated with the separation cavity (11);
A gas outlet pipe (3) with a gas inlet (31) communicated with the separation cavity (11) and a gas outlet (32) positioned outside the separator main body (1);
A liquid delivery pipe (4), wherein a liquid inlet (41) is communicated with the separation cavity (11) and is positioned below the air inlet (31), and a liquid outlet (42) is positioned outside the separator main body (1) and is positioned above the liquid inlet (41);
the height difference h between the air inlet (31) and the liquid inlet (41) satisfies:
Wherein P1 0、P11 is the pressure of the air outlet (32), P2 0、P21 is the pressure of the liquid outlet, and P1 0＜P20,P11＞P21;
the liquid outlet (42) is vertically not lower than the air inlet (31);
The gas-liquid separation device further comprises a gas-liquid conveying pipe (21) penetrating through the side wall of the separation cavity in a sealing mode, and one end, located outside the separator body, of the gas-liquid conveying pipe (21) serves as the gas-liquid inlet (2).
2. The gas-liquid separation device according to claim 1, characterized in that the gas inlet (31) is arranged close to a top inner wall surface of the separation chamber (11);
The liquid inlet (41) is arranged near the bottom of the separation chamber (11).
3. A gas-liquid separation device according to claim 2, characterized in that a portion of the gas delivery pipe (3) extends into the separation chamber (11) and that this portion extends vertically and is provided with the gas inlet (31) at its top; and/or
The liquid delivery pipe (4) extends into the separation cavity (11), and extends vertically and is provided with the liquid inlet (41) at the bottom.
4. A gas-liquid separation apparatus according to any one of claims 1-3, characterized in that the liquid delivery tube (4) is sealingly arranged through a side wall of the separation chamber; and/or
The gas delivery pipe (3) is arranged on the side wall of the separation cavity in a penetrating mode in a sealing mode, and the gas outlet (32) is located below the gas inlet (31).
5. A gas-liquid separation device according to any one of claims 1-3, characterized in that a drain (12) is provided on the bottom of the separation chamber, and a sealing cover is provided on the drain (12) in a sealing and detachable manner.
6. A gas-liquid separation apparatus according to any one of claims 1-3, characterized in that at least one first valve is provided on the portion of the gas delivery tube (3) that protrudes outside the separation chamber; and/or
At least one second valve is also arranged on the part of the liquid delivery pipe (4) extending out of the separation cavity.
7. A gas-liquid separation apparatus according to any one of claims 1-3, further comprising a bracket (6), the bottom of the separator body (1) being mounted on the bracket (6).
8. A gas-liquid separation system, comprising
The gas-liquid separation device according to any one of claims 1 to 7;
The gas collecting device is communicated with the gas outlet (32);
and the liquid collecting device is communicated with the liquid outlet (42).
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| CN110193258A (en) | 2019-09-03 |
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