An oil and gas recovery testing apparatus

Abstract

The application relates to the field of oil gas recovery treatment, and particularly discloses an oil gas recovery testing device, which comprises a condensing tank, a conveying part for constructing a first conveying cavity and a second conveying cavity for conveying oil gas into the condensing tank, a filtering part, and a driving part for adding external air into the condensing tank along the first conveying cavity and / or the second conveying cavity; when the external air is added into the condensing tank along the first conveying cavity, the external air is added into the condensing tank, and part of the external air is discharged along the second conveying cavity; when the external air is added into the condensing tank along the second conveying cavity, the external air is added into the condensing tank, and part of the external air is discharged along the first conveying cavity; and the first conveying cavity and the second conveying cavity are both provided with an oil gas concentration detector. The application has the effect of stably and continuously treating moisture and impurities in external air while ensuring the oil gas recovery.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil gas recovery processing, and particularly relates to an oil gas recovery testing device. BACKGROUND

[0002] Currently, the main purpose of oil gas recovery is to reduce the content of oil gas in the air, so as to ensure the safety near the gas station to a certain extent. In the process of oil gas recovery, the concentration of oil gas in the air is detected, and necessary measures are taken to ensure the safety around the gas station when the oil gas concentration is high.

[0003] In the process of recovering oil gas in the prior art, external air is directly sucked into a condenser, and then the content of oil gas liquefied into liquid is measured by using the weight change of the condenser, so as to infer the accurate oil gas concentration.

[0004] However, the inventor believes that the above technical solution has the following disadvantages:

[0005] The external air contains water and dust impurities, and the part of the air liquefied contains water in addition to oil gas, which leads to inaccurate measurement results. If the filter screen is used for filtering, the filter screen will be adhered with too much dust after a period of use, and the replacement process is complicated, so it is difficult to stably and continuously treat the water and impurities in the external air while ensuring the oil gas recovery. SUMMARY

[0006] In order to solve the problem of stably and continuously treating the water and impurities in the external air while ensuring the oil gas recovery, the present application provides an oil gas recovery testing device.

[0007] The oil gas recovery testing device provided by the present application adopts the following technical solution:

[0008] An oil gas recovery testing device comprises: a condenser for receiving oil gas and condensing the oil gas into a liquid state in the condenser; a conveying member for constructing a first conveying channel and a second conveying channel for conveying oil gas into the condenser; a filter member for forming a filter area for filtering out water vapor and impurities in the first conveying channel and the second channel; a driving member for adding external air to the condenser along the first conveying channel and / or the second conveying channel; wherein when the external air is added to the condenser along the first conveying channel, part of the external air is discharged along the second conveying channel; when the external air is added to the condenser along the second conveying channel, part of the external air is discharged along the first conveying channel; and the first conveying channel and the second conveying channel are both provided with an oil gas concentration detector.

[0009] By using the above technical scheme, the external air containing oil gas is added into the condensing tank through the first conveying cavity and the second conveying cavity, so that the oil gas is collected. The filter is used to filter out water vapor and impurities, so that only normal gas and oil gas enter the condensing tank, and the oil gas is liquefied into liquid after condensation, so that the collection of oil gas is realized. In addition, when the external air enters the condensing tank along the first conveying cavity, part of the external air is discharged along the second conveying cavity; when the external air enters the condensing tank along the second conveying cavity, part of the external air is discharged along the first conveying cavity, so that the filter of the first conveying cavity or the second conveying cavity can be cleaned at the same time of detecting the oil gas in the air.

[0010] Optionally, the direction in which the external air enters the first conveying cavity is parallel to the ground; the direction in which the external air enters the second conveying cavity is perpendicular to the ground and vertically upward.

[0011] By using the above technical scheme, when collecting oil gas, the first conveying cavity is parallel to the ground in the collecting direction, and the second conveying cavity is perpendicular to the ground in the conveying direction, so that the oil gas concentration of external air at different positions can be detected. The first conveying cavity mainly collects and tests the oil gas of air at a position above the ground, mainly the height of the human body, and the second conveying cavity mainly collects and tests the oil gas of air close to the ground, so that at least two groups of oil gas concentration measurement methods exist, and the oil gas concentration at different positions is tested. Thus, it can not only prevent the danger of open fire at the normal human height position, but also prevent the danger of open fire close to the ground.

[0012] Optionally, the conveying member is also used to form a total connecting cavity; the total connecting cavity is used to communicate the first connecting cavity and the second connecting cavity with the condensing tank; a condensing assembly is arranged in the condensing tank; the condensing assembly is used to form a condensing area in the condensing tank; the total connecting cavity communicates with the condensing area; a receiving area for receiving liquid oil gas is also formed below the condensing area in the condensing tank.

[0013] Optionally, the condensing assembly comprises a sealing plate, a total condensing pipe and a plurality of sub-condensing pipes; the plurality of sub-condensing pipes are arranged in a circumferential array; the total condensing pipe communicates with the plurality of sub-condensing pipes; the total condensing pipe is located in the middle of the plurality of sub-condensing pipes; the sealing plate is arranged in two parts, which are located at the upper part and the lower part of the sub-condensing pipe respectively; the sealing plate and the sub-condensing pipe form the condensing area; gaps communicating with the receiving area are formed between the plurality of sub-condensing pipes.

[0014] By adopting the technical scheme, the air containing oil and gas is added to the cooling area, and then is gathered between the multiple sub-condensing pipes and discharged outward through the gaps between the multiple sub-condensing pipes. Since the air is liquefied after entering between the multiple sub-condensing pipes, the liquefied oil and gas directly falls down, and when the oil and gas is much, part of the oil and gas cannot be liquefied and is discharged outward from the gaps between the multiple sub-condensing pipes, so that the oil and gas in the air contacts the pipe wall of the condensing pipe, the pipe wall of the condensing pipe is lower in temperature, and the oil and gas can be liquefied, thereby improving the effect of liquefying all the oil and gas and greatly improving the oil and gas recovery efficiency.

[0015] Optionally, the total condensing pipe is communicated with the multiple sub-condensing pipes through a sub-pipe head; the total condensing pipe is communicated with the sub-pipe head through a rotary connecting piece, so that the sub-pipe head and the multiple sub-condensing pipes can rotate relative to the total condensing pipe; a rotary power piece is arranged at the sub-pipe head, and the rotary power piece is used to drive the sub-pipe head to rotate so that the multiple sub-condensing pipes rotate in the condensing tank.

[0016] By adopting the technical scheme, since the oil and gas is condensed and adhered to the sub-condensing pipes when passing through the gaps between the multiple sub-condensing pipes, as the amount of the liquid state oil and gas adhered to the sub-condensing pipes gradually increases, an oil film is formed on the outer wall surface of the sub-condensing pipes, so that the air cannot directly contact the sub-condensing pipes, and the temperature difference between the air and the oil film is smaller than the temperature difference between the air and the outer wall surface of the sub-condensing pipes, thereby causing the condensing effect of the oil and gas to be poor, and the rotary power piece is used to drive the multiple sub-condensing pipes to rotate, so that the liquid state oil and gas adhered to the sub-condensing pipes is thrown outward by inertia, thereby keeping the oil and gas directly contacting the outer wall surface of the sub-condensing pipes at all times.

[0017] Optionally, a flow guide piece is arranged in the condensing area, the flow guide piece is arranged below a baffle located at the upper part of the sub-condensing pipes, the flow guide piece forms a flow guide chamber communicated with the inner wall surface of the condensing tank, multiple air outlet cavities communicated with the flow guide chamber and air outlets communicated with the air outlet cavities are further formed in the flow guide piece, the air outlets are located in the condensing area, and the total connecting cavity is communicated with the flow guide chamber.

[0018] Optionally, one end of the total condensing pipe extends into the lower part of the condensing tank, and the other end of the total condensing pipe extends into the upper part of the condensing tank; the end of the total condensing pipe extending into the lower part of the condensing tank is an inflow end, and the end of the total condensing pipe extending into the upper part of the condensing tank is an outflow end, so that the condensed liquid flows in the cooling area in one direction.

[0019] By adopting the technical scheme, since the cooling liquid in the sub-condensing pipes flows in one direction, the cooling liquid in the sub-condensing pipes can be discharged in time and the temperature of the sub-condensing pipes can be better ensured, so that the low temperature of the condensing area can be better ensured to improve the effect of oil and gas condensation. However, this also causes the total condensing pipe and the sub-condensing pipes to penetrate the condensing tank, and when the sub-condensing pipes rotate, it is difficult to realize that the total conveying channel adds air to the condensing area. Therefore, by arranging the flow guide member, the flow guide member can rotate together with the sub-condensing pipes, and the flow guide member is partially located between the plurality of sub-condensing pipes, so that air can be directly added to the condensing area between the plurality of sub-condensing pipes. Thus, air is added between the plurality of sub-condensing pipes first, so that air diffuses from the area between the plurality of sub-condensing pipes to the area outside the plurality of sub-condensing pipes. The space between the plurality of sub-condensing pipes is small and the temperature is low, so that the oil and gas in the air can be condensed. The purpose of air diffusion is mainly to make the air contact the sub-condensing pipes and further condense the oil and gas in the air. The air is added to the condensing area through the flow guide member, so that the air enters the condensing area and does not affect the rotation of the sub-condensing pipes. The plurality of sub-condensing pipes mainly rotate to make the sub-condensing pipes have the function of a turbine fan. The sub-condensing pipes can make the air flow in one direction, so that even if the air diffuses from the plurality of sub-condensing pipes to the outside of the plurality of sub-condensing pipes, the air flow in the condensing pipes is not disordered, that is, the air reciprocates through the gaps between the plurality of sub-condensing pipes, so that the cold energy of the sub-condensing pipes does not condense the air without gas, and the probability of doing useless work is reduced.

[0020] Optionally, the total condensing pipe is bent to form multiple rows below the condensing tank; a heat dissipation plate and a heat dissipation fan are arranged at the total condensing pipe; the heat dissipation fan cools the cooling liquid in the condensing pipe through the heat dissipation plate; and the airflow outputted outward by the heat dissipation fan intersects the cooling tank.

[0021] Optionally, a protective cover is arranged outside the heat dissipation fan and the heat dissipation plate; an opening is formed in the protective cover, so that the airflow formed by the heat dissipation fan intersects the cooling tank through the opening; a blocking piece is arranged at the opening, the blocking piece is used to prevent liquid from falling onto the heat dissipation fan through the opening and to supply the airflow formed by the heat dissipation fan to be outputted outward; and the second conveying channel communicates with the protective cover.

[0022] By adopting the technical scheme, the air is blown upwards from the through hole, and then the air is blown on the condensing tank. Since the condensing tank is provided with the branch condensing pipes and the total condensing pipe, the temperature of the outer wall surface of the condensing tank is low, and after the external air contacts the condensing tank, the moisture and oil gas in the air are liquefied by the low temperature, so that a layer of liquid is adhered to the outer wall surface of the condensing tank. The air is blown upwards from the through hole, so that the gas flow around the condensing tank is promoted, and especially the liquid at the bottom of the condensing tank is more easily blown off and then falls on the blocking piece. The blocking piece blocks the liquid and prevents the liquid from flowing into the heat dissipation fan.

[0023] Optionally, the filter forms a first filtering area and a second filtering area, the first filtering area is arranged at the first conveying channel, the second filtering area is formed outside the protective cover, and the second filtering area and the protective cover form a mounting area, and the heat dissipation plate and the heat dissipation fan are arranged in the mounting area.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The external air is conveyed into the condensing tank for condensation through the first conveying channel, and the external air is discharged outwards from the second conveying channel, so that the filter is back-flushed and cleaned, and the moisture and impurities in the external air are stably and continuously treated while the oil gas recovery is ensured;

[0026] 2. The external air is directly added into the condensing area through the plurality of branch condensing tanks, so that the oil gas in the external air is condensed, then the external air is discharged outwards through the gaps between the plurality of condensing tanks, and the oil gas in the external air is further condensed, so that the condensation treatment degree of the oil gas in the external air is increased;

[0027] 3. The external air is directly added into the condensing area through the flow guide during the rotation of the plurality of branch condensing tanks, and the oil liquid adhered to the branch condensing pipes is shaken off through the rotation of the plurality of branch condensing tanks, so that the low-temperature state of the branch condensing pipes is better ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a whole schematic view according to the embodiment of the present application;

[0029] Figure 2 is a structural schematic view of a part of the embodiment, mainly showing the structure observed from another view Figure 1 ;

[0030] Figure 3 is a structural schematic view of a part of the embodiment, mainly showing the structure observed from the bottom Figure 1 ;

[0031] Figure 4 is a structural diagram which is part of the embodiment, mainly showing the structure of the condensing assembly;

[0032] Figure 5 is a structural diagram which is part of the embodiment, mainly showing the structure of the sub-condensing pipes and the total condensing pipe;

[0033] Figure 6 is a structural diagram which is part of the embodiment, mainly showing the structure of the driving member and the partial surrounding parts;

[0034] Figure 7 is a structural diagram which is part of the embodiment, mainly showing the structure of the sub-condensing pipes and the gap formed between the sub-condensing pipes;

[0035] Figure 8 is a structural diagram which is part of the embodiment, mainly showing the structure of the sub-condensing pipes and the flow direction of the cooling liquid in the sub-condensing pipes;

[0036] Figure 9 is a structural diagram which is part of the embodiment, mainly showing the structure of the upper part of the sub-condensing pipes;

[0037] Figure 10 is a structural diagram which is part of the embodiment, mainly showing the structure of the protective cover;

[0038] Figure 11 is a structural diagram which is part of the embodiment, mainly showing Figure 1 the structure of the sectional view;

[0039] Figure 12 is a structural diagram which is part of the embodiment, mainly showing the sectional structure of the condensing tank and the partial surrounding parts;

[0040] Figure 13 is a structural diagram which is part of the embodiment, mainly showing the sectional structure of the flow guiding member;

[0041] Figure 14 is a structural diagram which is part of the embodiment, mainly showing the structure of the flow guiding chamber and the air outlet channel;

[0042] Figure 15 is a structural diagram which is part of the embodiment, mainly showing the sectional structure of the protective cover;

[0043] Figure 16 is a structural diagram which is part of the embodiment, mainly showing the structure of the blocking member and the flow direction of the air passing through the blocking member.

[0044] Reference signs: 1, mobile vehicle body; 2, condensing tank; 3, conveying part; 31, first conveying pipe; 32, second conveying pipe; 33, total conveying pipe; 34, first driving pump body; 35, first control valve; 36, second driving pump; 37, second control valve; 38, third driving pump; 39, third control valve; 4, output pipe; 5, driving part; 51, rotating fan blade; 52, fixed shaft; 6, condensing assembly; 61, sealing plate; 62, total condensing pipe; 63, partial condensing pipe; 631, gap; 632, condensing area; 64, flow guiding part; 641, flow guiding chamber; 642, air outlet channel; 65, heat dissipation plate; 66, heat dissipation fan; 7, protective cover; 71, through opening; 8, blocking part; 81, first plate body; 82, second plate body; 83, leading-out pipe; 84, storage box. DETAILED DESCRIPTION

[0045] The following will be described in detail with reference to the accompanying drawings. Figures 1-16 The application is further described in detail.

[0046] The application discloses an oil gas recovery testing device.

[0047] The oil gas recovery testing device comprises a mobile vehicle body 1, a condensing tank 2, a conveying part 3, a filtering part and a driving part 5.

[0048] The condensing tank 2 is used for receiving oil gas and condensing the oil gas into liquid state in the condensing tank 2, and the condensing tank 2 is a tank body with a spherical bottom. The conveying part 3 is used for constructing a first conveying channel and a second conveying channel for conveying oil gas into the condensing tank 2, and the conveying part 3 is a pipe body in this embodiment, which is used for conveying oil gas or air containing oil gas, mainly for conveying air containing oil gas. The filtering part is used for forming a filtering area for filtering water vapor and impurities in the first conveying channel and the second conveying channel. The filtering part is a filter screen layer and a desiccant layer in this embodiment. The filter screen layer is used for filtering dust and impurities, and the desiccant layer is used for filling the desiccant into a bag, and then the bag fills part of the first conveying channel or part of the second conveying channel, and the desiccant layer is mainly used for adsorbing water in the air. So that the air entering the condensing tank 2 only contains oil gas. The driving part 5 is used for adding external air into the condensing tank 2 along the first conveying channel and / or the second conveying channel, and the driving part 5 is a pump body. The external air can enter the condensing tank 2 from the first conveying channel alone, or enter the condensing tank 2 from the second conveying channel alone, or enter the condensing tank 2 from the first conveying channel and the second conveying channel at the same time. The condensing tank 2, the conveying part 3, the filtering part and the driving part 5 are all installed on the mobile vehicle body 1, so that the oil gas recovery detection is convenient to move and use.

[0049] The external air containing oil gas is added into the condensing tank 2 through the first conveying cavity and the second conveying cavity, so as to realize the collection of the oil gas. The filter is used for filtering out water vapor and impurities, so that the external air entering the condensing tank 2 is only normal gas and oil gas, and the oil gas is liquefied into liquid after condensation, thereby realizing the collection of the oil gas.

[0050] In the embodiment, the first conveying cavity and the second conveying cavity are communicated, and a control valve is arranged to control the communication of the first conveying cavity and the second conveying cavity. When the external air is added into the condensing tank 2 along the first conveying cavity, the external air is added into the condensing tank 2, and part of the external air is discharged along the second conveying cavity. When the external air is added into the condensing tank 2 along the second conveying cavity, the external air is added into the condensing tank 2, and part of the external air is discharged along the first conveying cavity. When the external air is added into the condensing tank 2 along the first conveying cavity, the external air is added into the condensing tank 2, and part of the external air is discharged along the second conveying cavity; when the external air is added into the condensing tank 2 along the second conveying cavity, the external air is added into the condensing tank 2, and part of the external air is discharged along the first conveying cavity, so that the filter of the first conveying cavity or the second conveying cavity can be cleaned by back blowing while detecting the oil gas in the air.

[0051] The first conveying cavity and the second conveying cavity are both provided with an oil gas concentration detector. The oil gas concentration detector can directly and quickly detect the oil gas concentration in the air, so that the oil gas concentration can be better controlled to ensure safety.

[0052] Specifically, the direction of the external air entering the first conveying cavity is parallel to the ground; the direction of the external air entering the second conveying cavity is perpendicular to the ground and vertically upward. The oil gas concentration of the external air at different positions can be detected.

[0053] More specifically, the conveying member 3 is also used to form a total connecting cavity. The total connecting cavity is composed of a pipe body, and the total connecting cavity is connected with the first conveying cavity and the second conveying cavity through a tee joint. The total connecting cavity is used to connect the first connecting cavity and the second connecting cavity with the condensing tank 2. A condensing assembly 6 is arranged in the condensing tank 2. The condensing assembly 6 is used to form a condensing area 632 in the condensing tank 2; the total connecting cavity is communicated with the condensing area 632, and a receiving area for receiving liquid oil gas is formed below the condensing area 632 in the condensing tank 2. The condensing assembly 6 adopts the prior art, and the condensing assembly 6 is a refrigeration element. Embodiment 2

[0054] The difference from the embodiment 1 is that:

[0055] On the basis of embodiment 1, the condensing assembly 6 comprises: a sealing plate 61, a total condensing pipe 62 and a plurality of sub-condensing pipes 63. The plurality of sub-condensing pipes 63 are arranged in a circumferential array, and the total condensing pipe 62 communicates with the plurality of sub-condensing pipes 63. The total condensing pipe 62 is located in the middle of the plurality of sub-condensing pipes 63. The sealing plate 61 is provided with two, which are located at the upper and lower parts of the sub-condensing pipe 63 respectively; the sealing plate 61 and the sub-condensing pipe 63 form the condensing area 632. The gap 631 communicating with the receiving area is formed between the plurality of sub-condensing pipes 63. Among them, the sub-condensing pipe 63 is connected with the total condensing pipe 62 at one end, and extends away from the total condensing pipe 62 by an end distance and then extends downward, thereby forming a space. Then the sealing plate 61 and the sub-condensing pipe 63 together form the condensing area 632. The air containing oil gas is discharged outward through the gap between the plurality of sub-condensing pipes 63. Then the oil gas in the air will contact the pipe wall of the condensing pipe, the pipe wall of the condensing pipe has a lower temperature, which can liquefy the oil gas, thereby improving the effect of completely liquefying the oil gas, and greatly improving the efficiency of oil gas recovery. Embodiment 3

[0056] The difference from embodiment 2 is that:

[0057] The total condensing pipe 62 communicates with the plurality of sub-condensing pipes 63 through a sub-pipe head. The total condensing pipe 62 communicates with the sub-pipe head through a rotary connecting piece, and the rotary connecting piece adopts a rotary joint. So that the sub-pipe head and the plurality of sub-condensing pipes 63 can rotate relative to the total condensing pipe 62. A rotary power piece is arranged at the sub-pipe head, and the rotary power piece is used to drive the sub-pipe head to rotate to make the plurality of sub-condensing pipes 63 rotate in the condensing tank 2. In this embodiment, the rotary power piece adopts a motor and a transmission component, and the motor drives the sub-pipe head outside the condensing tank 2 to rotate through the transmission component, so as to realize the rotation of the plurality of sub-condensing pipes 63. Among them, the transmission component adopts gear transmission or belt transmission.

[0058] One end of the total condensing pipe 62 extends into the lower part of the condensing tank 2, and the other end of the total condensing pipe 62 extends into the upper part of the condensing tank 2; wherein the end of the total condensing pipe 62 extending into the lower part of the condensing tank 2 is the inlet end; the end of the total condensing pipe 62 extending into the upper part of the condensing tank 2 is the outlet end, so that the condensate flows in one direction in the cooling area. Among them, the one-way flow refers to that the cooling liquid enters from the lower part and is discharged from the upper part, forming a cycle.

[0059] Since the oil and gas will condense and adhere to the sub-condensing pipe 63 when passing through the gap between the sub-condensing pipes 63, as the amount of liquid state oil and gas adhering to the sub-condensing pipe 63 gradually increases, an oil film will be formed on the outer wall surface of the sub-condensing pipe 63, which will prevent the air from directly contacting the sub-condensing pipe 63. The temperature difference between the air and the oil film is smaller than the temperature difference between the air and the outer wall surface of the sub-condensing pipe 63, which will result in poor condensation effect of the oil and gas. Therefore, by rotating the plurality of sub-condensing pipes 63 driven by the rotating power member, the liquid state oil and gas adhering to the sub-condensing pipe 63 can be thrown outwards by inertia, so that the oil and gas is always in direct contact with the outer wall surface of the sub-condensing pipe 63.

[0060] Specifically, the condensing region 632 is provided with a flow guide member 64, which is arranged below the baffle at the upper part of the sub-condensing pipe 63. The flow guide member 64 forms a flow guide chamber 641 in communication with the inner wall surface of the condensing tank 2; a plurality of air outlet cavities 642 in communication with the flow guide chamber 641 and air outlets in communication with the air outlet cavities 642 are also formed in the flow guide member 64. The air outlets are located in the condensing region 632; the total connecting cavity is in communication with the flow guide chamber 641. The flow guide member 64 is a plate body.

[0061] More specifically, the total condensing pipe 62 is bent to form multiple rows below the condensing tank 2; the heat dissipation plate 65 and the heat dissipation fan 66 are arranged at the total condensing pipe 62; the heat dissipation fan 66 cools the cooling liquid in the condensing pipe through the heat dissipation plate 65; the airflow outputted outward by the heat dissipation fan 66 intersects with the cooling tank.

[0062] The one end of the sub-condensing pipe 63 is connected with the total condensing pipe 62 at the lower part of the cooling tank, the other end extends away from the total condensing pipe 62 by a distance, then extends upward, and after extending upward by a distance, extends downward by bending, and after repeating bending multiple times, forms a region with an area and a volume larger than that of a single sub-condensing pipe 63, and finally extends upward to be connected with the total condensing pipe 62 at the upper part of the condensing tank 2. Since the number of sub-condensing pipes 63 connected with the total condensing pipe 62 is limited, by repeatedly bending the sub-condensing pipe 63 multiple times, a large volume condensing region 632 can be formed. Embodiment 4

[0063] The difference from embodiment 3 is that:

[0064] The heat dissipation fan 66 and the heat dissipation plate 65 are externally provided with a protective cover 7 which is a square housing completely covering the heat dissipation fan 66 and the heat dissipation plate 65. An opening 71 is formed on the protective cover 7, and the opening direction of the opening 71 is upward so that the air flow formed by the heat dissipation fan 66 intersects with the cooling tank after passing through the opening 71. A blocking piece 8 is arranged at the opening 71, and the blocking piece 8 is used to prevent liquid from falling onto the heat dissipation fan 66 through the opening 71 and to output the air flow formed by the heat dissipation fan 66 outward. The second conveying channel communicates with the protective cover 7. The main purpose is to blow air upward from the opening 71, and then the air blows on the condensing tank 2. Since the condensing tank 2 is provided with a branch condensing pipe 63 and a total condensing pipe 62, the temperature of the outer wall surface of the condensing tank 2 is relatively low, and the water in the air and the oil gas will be liquefied after the external air contacts the condensing tank 2, so that a layer of liquid will be adhered to the outer wall surface of the condensing tank 2. The upward blowing of the air through the opening 71 can promote the flow of the gas around the condensing tank 2, especially the liquid at the bottom of the condensing tank 2 is more easily blown down, and then falls on the blocking piece 8, and the blocking piece 8 blocks the liquid and prevents the liquid from flowing into the heat dissipation fan 66.

[0065] Specifically, the blocking piece 8 is as follows:

[0066] The blocking piece 8 comprises a first plate body 81 and a second plate body 82. The opening 71 is provided with a plurality of openings, and the blocking piece 8 is provided with a plurality of blocking pieces, and the plurality of blocking pieces are respectively arranged in each opening 71. The first plate body 81 is fixed to one side of the opening 71, and the second plate body 82 is fixed to the other side of the opening 71. The first plate body 81 is located above the second plate body 82, and the widths of the first plate body 81 and the second plate body 82 are the same and greater than half of the width of the opening 71. The first plate body 81 and the second plate body 82 are both inclined downward, so that when the liquid adhered to the outer wall of the condensing tank 2 falls into the opening 71, the liquid will fall on the first plate body 81 or the second plate body 82 and cannot pass through the first plate body 81 and the second plate body 82 to enter the heat dissipation fan 66, thereby protecting the heat dissipation fan 66. In addition, after the liquid falls on the first plate body 81 or the second plate body 82, the first plate body 81 and the second plate body 82 are inclined downward, so that the liquid is inclined downward and is conveyed to the end of the first plate body 81 and the second plate body 82. In order to better prevent the liquid from overflowing on the first plate body 81 and the second plate body 82, a V-shaped groove is formed on the first plate body 81 and the second plate body 82 to accommodate the liquid.

[0067] In order to timely discharge the liquid in the V-shaped groove, a discharge pipe 83 is arranged at the end of the first plate body 81 and the end of the second plate body 82, and a storage tank 84 is arranged at the edge of the protective cover 7, and the storage tank 84 communicates with the discharge pipe 83, so as to collect the liquid falling from the condensing tank 2.

[0068] In other solutions, the derivation pipe 83 is directly connected to the condensing tank 2, through which the condensing tank 2 is stored. Embodiment 5

[0069] The difference from embodiment 4 is that the filter forms a first filter area and a second filter area, wherein the first filter area is arranged at the first conveying channel, and the second filter area is formed outside the protective cover 7. The second filter area and the protective cover 7 form a mounting area, and the heat dissipation plate 65 and the heat dissipation fan 66 are arranged in the mounting area.

[0070] The conveying member 3 includes a first conveying pipe 31, a second conveying pipe 32 and a total conveying pipe 33. The first conveying pipe 31 is used to form a first conveying channel, the second conveying pipe 32 is used to form a second conveying channel, and the total conveying pipe 33 is used to form a total connecting channel. The conveying member 3 further includes an output pipe 4, which is in communication with the upper part of the condensing tank 2, and is used to discharge the air without oil gas after the oil gas in the air is condensed in the condensing tank 2.

[0071] Specifically, the first conveying pipe 31 is provided with a first driving pump body 34 and a first control valve 35; the second conveying pipe 32 is provided with a second driving pump 36 and a second control valve 37; and the output pipe 4 is provided with a third driving pump 38 and a third control valve 39. When the external air enters the condensing tank 2 from the first conveying channel and the second conveying channel at the same time, the third driving pump 38 is started, and the first driving pump or the second driving pump 36 can be started or not started. When the external air enters from the first conveying channel and part of it enters the condensing tank 2 and part of it is discharged from the second conveying channel, the first driving pump is started, and the second driving pump 36 and the third driving pump 38 are stopped. In addition, when the air enters the condensing tank 2 only from the first conveying channel or only from the second conveying channel, the opening and closing states of the first control valve 35, the second control valve 37 and the third control valve 39 are controlled. Embodiment 6

[0072] The difference from the embodiment 3 is that the rotating power is composed of a plurality of rotating vanes 51. A fixed shaft 52 is arranged at the joint of the total condensing pipe 62 and the branch condensing pipe 63, the rotating vanes 51 are arranged on the fixed shaft 52, when the external air enters into the condensing area 632, the external air contacts the rotating vanes 51, and then the rotating vanes 51 are driven to rotate, so that the fixed shaft 52 is driven to rotate, the fixed shaft 52 drives the plurality of branch condensing pipes 63 to rotate, and the rotation of the plurality of branch condensing pipes 63 is realized. In this way, the rotating joint and the branch pipe head can be arranged in the inside of the condensing tank 2, the total condensing pipe 62 is fixed relative to the condensing tank 2, the sealing of the joint of the total condensing pipe 62 and the condensing tank 2 is facilitated, and the embodiment 3 is arranged outside the condensing tank 2, so that the branch pipe head is connected with the condensing tank 2 and can rotate relative to the condensing tank 2, and the sealing difficulty is increased. Embodiment 7

[0073] The difference from the above-mentioned embodiments is that:

[0074] The second conveying pipe 32 is in communication with the space in the inside of the protective cover 7. When the oil gas enters through the second conveying pipe 32, the heat dissipation fan 66 can be used to blow the heat dissipation fan 66 upward to dissipate heat and assist the second conveying pipe 32 to intake air.

[0075] The implementation principle of the oil gas recovery testing device in the embodiment of the application is as follows:

[0076] The third driving pump 38 is started, the external air enters into the total conveying cavity along the first conveying cavity and the second conveying cavity at the same time, in this process, the dust and impurities and the moisture in the external air are filtered by the filter, and then the external air directly enters into the condensing area 632 through the flow guide 64. The external air is cooled, and the oil gas in the external air is liquefied into liquid. The liquid flows downward and contacts the inner wall of the condensing tank 2, so that the oil gas is collected, but in another case, only part of the oil gas in the external air is liquefied by cooling, and the other part of the oil gas flows out along the gap between the plurality of branch condensing pipes 63. Since the temperature of the branch condensing pipe 63 is lower than that of the condensing area 632 between the plurality of branch condensing pipes 63, the oil gas is further liquefied. After the oil gas is liquefied, the oil gas is adhered to the branch condensing pipe 63. The plurality of branch condensing pipes 63 are arranged to be rotatable, so that the liquid is thrown out and separated from the branch condensing pipe 63 under the action of inertia and contacts the inner wall of the condensing tank 2, and the oil gas is collected.

[0077] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. An oil and gas recovery test device, characterized by: include: A condensation tank is used to receive oil and gas and condense the oil and gas into a liquid state in the condensation tank; A conveying member, used for constructing a first conveying cavity and a second conveying cavity for conveying oil and gas to the condensation tank; A filter element, used to form a filter area in the first delivery cavity and the second delivery cavity for filtering out water vapor and impurities; A driving member, configured to allow external air to be fed into the condensation tank along the first delivery cavity and / or the second delivery cavity; Wherein, when the external air is added to the condensation tank along the first delivery cavity, the external air is added to the condensation tank, and part of the external air is discharged along the second delivery cavity; When the external air is added to the condensation tank along the second delivery cavity, the external air is added to the condensation tank, and part of the external air is discharged along the first delivery cavity; The first delivery cavity and the second delivery cavity are both provided with an oil and gas concentration detector; The conveying member is also used to form a total connecting cavity; A condensation assembly is provided in the condensation tank; the condensation assembly is used to form a condensation area in the condensation tank; the main connecting cavity is connected to the condensation area; The condensation tank also forms a receiving area below the condensation area for receiving liquid oil and gas; The condensation assembly includes: a sealing plate, a main condensation pipe and a plurality of sub-condensation pipes; The plurality of sub-condensing pipes are arranged in a circular array; the main condensing pipe is connected to the plurality of sub-condensing pipes; The main condenser is located in the middle of the plurality of sub-condensers; Two sealing plates are provided, respectively located at the upper and lower parts of the sub-condensing tube; the sealing plates and the sub-condensing tube form the condensing area; A gap is formed between the plurality of condensing tubes and is in communication with the receiving area; The main condenser is connected to the plurality of branch condensers through a branch pipe head; the main condenser is connected to the branch pipe head through a rotating connector, so that the branch pipe head and the plurality of branch condensers can rotate relative to the main condenser; A rotating power piece is provided at the branch pipe head, and the rotating power piece is used to drive the branch pipe head to rotate so that the plurality of branch condensing pipes rotate in the condensing tank; The rotating power part is composed of a plurality of rotating blades; a fixed shaft is provided at the connection between the total condensing pipe and the sub-condensing pipe, the fixed shaft is located in the condensing area, and the rotating blades are provided on the fixed shaft.

2. The oil and gas recovery test device according to claim 1, characterized in that: The direction in which external air enters the first delivery cavity is parallel to the ground; The direction in which external air enters the second delivery cavity is perpendicular to the ground and vertically upward.

3. The oil and gas recovery test device according to claim 1, characterized in that: A flow guide is provided in the condensation area, and the flow guide is provided below the baffle located at the upper part of the sub-condensation pipe; The guide member forms a guide chamber connected to the inner wall of the condensing tank; the guide member also forms a plurality of air outlet channels connected to the guide chamber and air outlets connected to the air outlet channels; The air outlet is located in the condensation area; the main connecting cavity is communicated with the flow guide cavity.

4. An oil and gas recovery test device according to claim 1 or 3, characterized in that: One end of the total condensing pipe extends into the lower part of the condensing tank, and the other end of the total condensing pipe extends into the upper part of the condensing tank; Among them, the end of the total condensation pipe extending into the lower part of the condensation tank is the inlet end; the end of the total condensation pipe extending into the upper part of the condensation tank is the outlet end, so that the condensate flows unidirectionally in the condensation area.

5. The oil and gas recovery test device according to claim 4, characterized in that: The total condensing pipe is bent to form multiple rows below the condensing tank; a heat sink and a heat dissipation fan are provided at the total condensing pipe; the heat dissipation fan cools the condensate in the condensing pipe through the heat sink; The airflow output outward by the heat dissipation fan intersects with the condensation tank.

6. The oil and gas recovery test device according to claim 5, characterized in that: A protective cover is provided on the outside of the cooling fan and the cooling plate; a through hole is formed on the protective cover so that the airflow generated by the cooling fan passes through the through hole and intersects with the condensation tank; A baffle is provided at the through-hole, and is used to prevent liquid from falling onto the cooling fan through the through-hole and to allow the airflow generated by the cooling fan to be output outward; The second delivery cavity is communicated with the protective cover.

7. The oil and gas recovery test device according to claim 6, characterized in that: The filter element forms a first filter area and a second filter area, wherein the first filter area is arranged at the first delivery cavity; the second filter area is formed outside the protective cover; The second filter area and the protective cover form an installation area, and the heat dissipation plate and the heat dissipation fan are both arranged in the installation area.

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