Gas-liquid separator for carbon monoxide preparation and preparation system

Abstract

The utility model relates to the technical field of carbon monoxide preparation, and provides a gas-liquid separator for carbon monoxide preparation and a preparation system.The gas-liquid separator comprises a horizontal shell, the horizontal shell comprises a pretreatment cavity, a first liquid separation cavity and a second liquid separation cavity, and a gas guide plate is arranged between the first liquid separation cavity and the second liquid separation cavity; the pretreatment cavity is communicated with the first liquid separation cavity, the bottom surfaces of the first liquid separation cavity and the second liquid separation cavity are provided with a first liquid outlet and a second liquid outlet, the first liquid outlet and the second liquid outlet are directly connected with a water collecting tank, the top of the water collecting tank is provided with an air valve, and the air valve is connected with the pretreatment cavity through an air return pipe; a rotating device is arranged in the pretreatment cavity, and a gas condensing assembly arranged in a suspended mode is arranged in the second liquid separation cavity. According to the utility model, the structure of the existing gas-liquid separator is optimized, so that the gas-liquid separation effect is improved, the efficient separation of a compressed gas-liquid mixture is realized, and meanwhile, the quality of carbon monoxide prepared by a carbon monoxide preparation system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a carbon monoxide preparation technical field, concretely relates to a carbon monoxide preparation gas-liquid separator and preparation system. BACKGROUND

[0002] Carbon monoxide is called phosgene, and its preparation is a common gas preparation process, which involves a water removal process, that is, water in carbon monoxide is absorbed. In some process technologies, there is still some water in the compressed carbon monoxide, which not only causes periodic water content exceeding the standard in the carbon monoxide, but also causes the condensed water to gather in the compressor outlet pipeline, affecting the normal operation or service life of the compressor. In addition, it brings water removal pressure to the subsequent processes such as the dryer. Therefore, the compressed gas-liquid mixture is treated by a gas-liquid separator. The existing gas-liquid separator uses the gas-liquid mixture to impact the baffle to destroy the balance of the gas-liquid mixture, so that the lighter gas rises and is discharged from the gas passage, and the heavier liquid is discharged from the liquid passage, thereby realizing gas-liquid separation. However, this gas-liquid separation method may not fully separate the water and gas after compression. SUMMARY

[0003] The utility model provides a carbon monoxide preparation gas-liquid separator and preparation system, which optimizes the structure of the existing gas-liquid separator to improve the gas-liquid separation effect and solve the technical problem of insufficient gas-liquid separation effect of the existing gas-liquid separator for the compressed gas-liquid mixture.

[0004] The technical scheme of the utility model is as follows:

[0005] In the first aspect, the utility model provides a carbon monoxide preparation gas-liquid separator, which comprises a horizontal shell, the horizontal shell comprises a pretreatment cavity, a first liquid separation cavity and a second liquid separation cavity, a gas guide plate is arranged between the first liquid separation cavity and the second liquid separation cavity, the pretreatment cavity is communicated with the first liquid separation cavity, the bottom surface of the first liquid separation cavity and the second liquid separation cavity is provided with a first liquid outlet and a second liquid outlet, the first liquid outlet and the second liquid outlet are directly connected with a water collecting tank, a gas valve is arranged on the top of the water collecting tank, and the gas valve is connected with the pretreatment cavity through a gas return pipe; a rotating device is arranged in the pretreatment cavity, and a gas condensation assembly is arranged in the second liquid separation cavity in a hanging mode.

[0006] Optionally, the rotating device comprises a rotating shaft, a fixed plate and an aeration blade rotatably connected with the rotating shaft, the upper end of the rotating shaft is connected with the fixed plate, the fixed plate is connected with the horizontal shell, and the aeration blade is petal-shaped.

[0007] Optionally, the rotating shaft comprises a guide groove arranged around the outer surface of the rotating shaft.

[0008] Optionally, the gas condensing assembly comprises a barrel, a bearing seat and a motor, two ends of the bearing seat are connected with a top end of the barrel and a shaft of the motor respectively, and a barrel body of the barrel comprises a gas hole.

[0009] Optionally, the second liquid separation cavity is a double-layer structure, and a flowing refrigerant medium is arranged between an inner cavity and an outer cavity.

[0010] Optionally, the gas condensing assembly comprises a barrel, a fixed support and a motor, the barrel comprises a groove matched with the fixed support, and the motor is in driving connection with the fixed support.

[0011] Optionally, the gas separation inner liner is further arranged, the gas separation inner liner is sleeved with an inner wall of an inlet end of the pretreatment cavity, and the gas separation inner liner comprises at least two gas separation plates.

[0012] In the second aspect, the utility model also provides a preparation system, including the carbon monoxide preparation gas liquid separator of any one described in the preceding, still include filter, dryer, buffer tank, liquid accumulator, electronic valve, the filter is connected with the compressor, the outlet of the compressor is connected with the gas liquid separator, the outlet of the gas liquid separator is connected with the dryer, the outlet of the dryer is connected with the buffer tank, the gas and liquid separated by the gas liquid separator are connected with the dryer, the liquid accumulator through the gas pipe, the water pipe, the electronic valve is arranged in the pipeline of the system.

[0013] The principle and beneficial effects of the utility model are as follows:

[0014] The gas liquid separator for preparing carbon monoxide provided by the utility model adopts a conventional horizontal structure, but it comprises different treatment cavities, wherein a rotating device is arranged in the pretreatment cavity, when the gas-liquid mixture after compression treatment enters the pretreatment cavity, first contacts the rotating device, because the gas-liquid mixture after compression has a certain pressure, impacts the rotating device and drives the rotating device to rotate, the blade rotating around the rotating shaft in the rotating device gives the tangential force of the gas-liquid mixture, and the total power of the liquid is increased, so that the gas and liquid particles in the gas-liquid mixture are more easily separated. The liquid separated in the pretreatment cavity falls on the bottom surface of the first liquid separation cavity, the separated gas enters the second liquid separation cavity after passing through the gas guide plate between the first liquid separation cavity and the second liquid separation cavity, and the gas condensing assembly in the second liquid separation cavity rotates at high speed under the action of the motor, so that the small liquid particles condensed on the surface of the gas are thrown out at high speed, the probability of the small liquid particles wrapped on the surface of the gas being separated from the gas is increased, and the effect of gas-liquid separation is realized again.

[0015] In addition, the preparation system provided by the utility model is used for preparing carbon monoxide, the gas-liquid separator in which improves the separation effect of gas and liquid in the gas-liquid mixture, that is, effectively reduces the water content of the gas with water after compression, and the carbon monoxide is buffered in the buffer tank after drying treatment, and the preparation system improves the quality of the prepared carbon monoxide. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0017] Figure 1 The utility model provides a carbon monoxide preparation gas-liquid separator front face and partial cross section schematic view;

[0018] Figure 2 The internal enlarged structure schematic diagram of the rotating device in the embodiment is shown;

[0019] Figure 3 The barrel mounting structure schematic diagram of two different condensation assemblies in the embodiment is shown;

[0020] Figure 4 The preparation system structure schematic diagram provided by the utility model is shown.

[0021] In the drawing: 1, horizontal shell, 11, pretreatment cavity, 12, first liquid separation cavity, 13, second liquid separation cavity, 10, first liquid outlet, 20, second liquid outlet, 110, rotating device, 111, rotating shaft, 112, fixed plate, 113, aeration blade, 130, condensation assembly, 131, barrel, 132, fixed support, 2, water collecting tank, 3, filter, 4, dryer, 5, buffer tank, 6, liquid accumulator, 7, gas return pipe. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0023] Carbon monoxide is called phosgene, its preparation is the existing common gas preparation process, in the preparation process involves water removal process, that is, the water in carbon monoxide is absorbed, the problem in some process technology is that there is still part of the water in the compressed carbon monoxide, not only causes the periodic water content of the carbon monoxide to be out of limit, but also the condensed water gathers in the compressor outlet pipeline, which affects the normal work or service life of the compressor, in addition, the water removal pressure of the subsequent process such as the dryer 4 is brought. Therefore, the gas-liquid separator is usually used to separate the compressed gas-liquid mixture, and the existing gas-liquid separator usually uses the gas-liquid mixture to impact the baffle to destroy the balance of the gas-liquid mixture, so that the lighter gas rises and is discharged from the gas channel, and the heavier liquid is discharged from the liquid channel, so that the gas-liquid separation is realized. However, the gas-liquid separation mode may not fully separate the gas and liquid for the water-gas mixture after compression, and therefore the utility model provides a gas-liquid separator for carbon monoxide preparation and a preparation system.

[0024] Please refer to the accompanying Figures 1 to 4 The utility model provides a gas-liquid separator for carbon monoxide preparation and a preparation system.

[0025] The first aspect, as shown in Figure 1 The utility model provides a gas-liquid separator for carbon monoxide preparation, including horizontal shell 1, horizontal shell 1 includes pretreatment chamber 11, first liquid separation chamber 12, second liquid separation chamber 13, and the first liquid separation chamber 12 is equipped with the gas guide plate between second liquid separation chamber, pretreatment chamber 11 is connected with first liquid separation chamber 12, and the bottom surface of first liquid separation chamber 12 and second liquid separation chamber 13 is equipped with first liquid outlet 10 and second liquid outlet 20, and first liquid outlet 10 is directly connected with second liquid outlet 20 with water collecting tank 2, and the top of water collecting tank 2 is equipped with gas valve, and the gas valve is connected with pretreatment chamber 11 through return gas pipe 7;Pretreatment chamber 11 is equipped with rotating device 110, and second liquid separation chamber 13 is equipped with condensation assembly 130 suspendedly arranged.

[0026] As described above, the gas-liquid separator for preparing carbon monoxide provided by the utility model adopts a conventional horizontal structure, and the separation principle is that:

[0027] Firstly, the rotating device 110 is arranged in the pretreatment chamber 11 of the gas-liquid separator, when the gas-liquid mixture after compression treatment enters the pretreatment chamber 11, first contacts the rotating device 110, because the gas-liquid mixture after compression has a certain pressure, impinges the rotating device 110 and drives the rotating device 110 to rotate, the blade rotating around the rotating shaft 111 in the rotating device 110 gives the tangential force of the gas-liquid mixture, and the self power of the gas-liquid mixture, the resultant force of the two is the force suffered by the gas-liquid mixture, the total power of the liquid increases, so that the gas and liquid particles in the gas-liquid mixture are more easily separated.

[0028] Then, the liquid separated in the pre-treatment cavity 11 falls on the bottom surface of the first separation cavity 12 and is discharged through the first liquid outlet 10, and the gas separated is introduced into the second separation cavity 13 through the gas guide plate between the first separation cavity 12 and the second separation cavity 13. The condensing assembly 130 in the second separation cavity 13 rotates at high speed under the action of the motor, so that the small liquid particles condensed on the surface of the condensing assembly 130 are thrown out at high speed, the probability of the small liquid particles wrapped on the surface of the gas being separated from the gas is increased, and the effect of gas-liquid separation is achieved again. At the same time, the small liquid particles fall on the bottom surface of the second separation cavity 13 or slide along the inner wall of the second separation cavity 13 to the bottom surface of the cavity, and flow out from the second liquid outlet 20. At this time, the gas-liquid separation is completed, and the gas is discharged from the second separation cavity 13.

[0029] In addition, considering that carbon monoxide gas may escape from the first liquid outlet 10 and the second liquid outlet 20, the escaped carbon monoxide gas is introduced into the pre-treatment cavity 11 again to be dehydrated again by arranging a gas valve and a gas return pipe 7 on the water collecting tank 2. The gas return treatment not only improves the dehydration efficiency and quality of carbon monoxide, but also further improves the separation effect of the gas-liquid separator.

[0030] Specifically, as shown in Figure 2 The rotating device 110 includes a rotating shaft 111, a fixed plate 112, and an aeration blade 113 connected with the rotating shaft 111. The upper end of the rotating shaft 111 is connected with the fixed plate 112, and the fixed plate 112 is connected with the horizontal shell 1. The aeration blade 113 is petal-shaped and converges to the rotating shaft 111.

[0031] The fixed plate 112 connects the rotating shaft 111 with the horizontal shell 1. The aeration blade 113 is petal-shaped and uniformly surrounds the rotating shaft 111. The aeration blade 113 and the rotating shaft 111 are connected through a waterproof ball bearing or a sleeve bearing, so that the aeration blade 113 rotates around the rotating shaft 111 when the gas-liquid mixture impacts on the aeration blade 113. In addition, the petal-shaped structure has the effect of guiding the liquid to the rotating shaft 111, which helps the gas-liquid separation. Of course, the aeration blade 113 can also be designed into other structures with arc surfaces. The arc structure is the main feature of the aeration blade 113 in the utility model.

[0032] In addition, the rotating shaft 111 of the rotating device 110 includes a guide groove arranged on the outer surface of the rotating shaft 111. The guide groove guides the liquid on the rotating shaft 111 to flow downward along the rotating shaft 111, avoiding the separated liquid from being adsorbed and remaining on the outer surface of the rotating shaft 111.

[0033] Specifically, as shown in Figure 3As shown on the right side, the aforementioned gas condensing assembly 130 includes a barrel 131, a bearing seat, and a motor, the two ends of the bearing seat are connected with the top end of the barrel 131 and the shaft of the motor respectively, the barrel body of the barrel 131 contains a gas hole for gas-liquid mixture or gas flow. In addition, the gas condensing assembly 130 can also include a barrel 131, a fixed support 132, and a motor, as shown on the left side of the figure. Figure 3 As shown on the left side, the barrel 131 includes a groove matched with the fixed support 132, and the motor is drivingly connected with the fixed support 132.

[0034] One structure of the gas condensing assembly 130 that can be implemented is that the motor is connected with the barrel 131 through the bearing seat to control the high-speed rotation of the barrel 131, so that the small particles of liquid condensed on the surface of the gas condensing assembly 130 are thrown out and slide along the inner wall of the second liquid separation cavity 13. The small particles of liquid automatically fall on the bottom surface of the second liquid separation cavity 13, or slide along the inner wall of the second liquid separation cavity 13 to the bottom surface of the cavity and flow out from the second liquid outlet 20.

[0035] Another structure of the gas condensing assembly 130 that can be implemented is that after the fixed support 132 is matched and fixed with the groove of the barrel 131, the motor is connected with the connecting block at the upper end, and the motor drives the high-speed rotation of the barrel 131. That is, the fixed support 132 is arranged at the structure of the inner recess arranged two by two on the side of the barrel 131, the barrel 131 is connected with the fixed support 132, the top ends of the two fixed supports 132 are connected by a connecting rod, and then the motor is connected with the connecting rod to drive the rotation of the barrel 131.

[0036] In some embodiments, the aforementioned second liquid separation cavity 13 has a double-layer structure, and a flowing refrigerant medium is arranged between the inner cavity and the outer cavity.

[0037] In this embodiment, the second liquid separation cavity 13 is arranged to have a double-layer cavity structure, a refrigerant medium is arranged between the inner cavity and the outer cavity, so that the temperature of the outer wall of the inner cavity is relatively low, and the small particles of water are adsorbed and settled on the inner wall. In order to increase the smoothness and corrosion resistance of the inner wall surface of the inner cavity, stainless steel is arranged as the material of the inner cavity, and the temperature conducting performance is superior, which further improves the durability and practicability of the gas-liquid separator. In addition, the refrigerant medium can be cooling liquid or cooling water.

[0038] In other embodiments, the utility model also includes a gas distribution lining, which is sleeved with the inner wall of the inlet end of the pretreatment cavity 11. The gas distribution lining includes at least two gas distribution plates. The gas distribution lining is used for uniformly dispersing the gas-liquid mixture entering the pretreatment cavity 11, and the embedded structure facilitates installation and maintenance. The number and specific structure of the gas distribution plates for gas distribution are not specifically limited in this embodiment.

[0039] In the second aspect, the utility model still provides a kind of preparation system, including the gas-liquid separator of carbon monoxide preparation of any one of preceding face, still include filter 3, dryer 4, buffer tank 5 and electronic valve, filter 3 is connected with compressor, the outlet of compressor is connected with gas-liquid separator, the outlet of gas-liquid separator is connected with dryer 4, the outlet of dryer 4 is connected with buffer tank 5;Gas and liquid separated by gas-liquid separator are connected with dryer 4, liquid accumulator 6 respectively by gas pipe, water pipe, wherein electronic valve is located in the pipeline in system.

[0040] As Figure 4 The utility model provides preparation system for preparing carbon monoxide, and the gas-liquid separator in it improves the effect that gas and liquid are separated in gas-liquid mixture, i. e. effectively reduce the water content of gas after compression, after drying treatment, carbon monoxide is buffered in buffer tank 5, and the utility model improves the quality of preparation carbon monoxide. Wherein, liquid accumulator 6 is used to collect liquid after compression, and the liquid separated by gas-liquid separator. Filter 3 is used to filter impurity in original gas-liquid mixture, and dryer 4 is used to store carbon monoxide gas again in buffer tank 5 after drying again after separation by gas-liquid separator.

[0041] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A gas-liquid separator for carbon monoxide production comprising a horizontal housing (1), characterized in that, The horizontal shell (1) comprises a pretreatment cavity (11), a first separation cavity (12) and a second separation cavity (13), a gas guide plate (8) is arranged between the first separation cavity (12) and the second separation cavity, the pretreatment cavity (11) is communicated with the first separation cavity (12), the bottom surface of the first separation cavity (12) and the second separation cavity (13) is provided with a first liquid outlet (10) and a second liquid outlet (20), the first liquid outlet (10) and the second liquid outlet (20) are directly connected with a water collecting tank (2), the top of the water collecting tank (2) is provided with a gas valve, the gas valve is connected with the pretreatment cavity (11) through a gas return pipe (7), the pretreatment cavity (11) is provided with a rotating device (110), and the second separation cavity (13) is provided with a condensation assembly (130) arranged in a hanging mode.

2. The gas-liquid separator for carbon monoxide production according to claim 1, wherein The rotating device (110) comprises a rotating shaft (111), a fixed plate (112) and an aeration blade (113) rotationally connected with the rotating shaft (111), the upper end of the rotating shaft (111) is connected with the fixed plate (112), the fixed plate (112) is connected with the horizontal shell (1), and the aeration blade (113) is in the shape of a petal.

3. The gas-liquid separator for carbon monoxide production according to claim 2, wherein The rotating shaft (111) comprises a guide groove arranged on the outer surface of the rotating shaft (111).

4. The gas-liquid separator for carbon monoxide production according to claim 1, wherein The condensation assembly (130) comprises a barrel body (131), a bearing seat and a motor, the two ends of the bearing seat are respectively connected with the top end of the barrel body (131) and the shaft of the motor, and the barrel body (131) comprises a gas hole.

5. The gas-liquid separator for carbon monoxide production according to claim 4, wherein The second separation cavity (13) is in a double-layer structure, and a flowing refrigerant medium is arranged between the inner cavity and the outer cavity.

6. The gas-liquid separator for carbon monoxide production according to claim 1, wherein The condensation assembly (130) comprises a barrel body (131), a fixed support (132) and a motor, the barrel body (131) comprises a groove matched with the fixed support (132), and the motor is drivingly connected with the fixed support (132).

7. A gas-liquid separator for carbon monoxide production according to claim 4 or 6, characterized in that A gas distribution lining is further arranged, the gas distribution lining is sleeved with the inner wall of the inlet end of the pretreatment cavity (11), and the gas distribution lining comprises at least two gas distribution plates.

8. A system for preparing, The gas-liquid separator for carbon monoxide preparation comprises the filter (3), the dryer (4), the buffer tank (5), the liquid accumulator (6) and the electronic valve, the outlet of the compressor is connected with the gas-liquid separator, the outlet of the gas-liquid separator is connected with the dryer (4), the outlet of the dryer (4) is connected with the buffer tank (5), the gas and the liquid separated by the gas-liquid separator are connected with the dryer (4) and the liquid accumulator (6) through a gas pipe and a water pipe respectively, and the electronic valve is arranged in the pipeline of the system.

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