Exhaust system and crude oil solid content analysis equipment

Abstract

The utility model relates to the field of volatile gas pretreatment, and discloses an exhaust system and crude oil solid content analysis equipment, the exhaust system comprises an exhaust pipeline, a condenser and a condensate collecting container, the exhaust pipeline comprises a first pipe section and a second pipe section, the second pipe section extends along the vertical direction, and the side wall of the second pipe section is connected with the outlet end of the first pipe section; the condenser comprises a condensation barrel connected to the upper end of the second pipe section and a condensation pipe at least partially arranged in the condensation barrel, the condensate collecting container is connected with the lower end of the second pipe section, a first baffle is arranged in the condensate collecting container, and the first baffle is used for at least partially preventing gas from flowing downwards. Volatile gas flows upwards and enters the condensation barrel, then contacts with the condensation pipe in the condensation barrel and exchanges heat, the volatile gas is converted into liquid condensate from gas, and the condensate flows downwards or drips into the condensate collection container, so that pretreatment of the volatile gas is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas emission technical field, concretely relates to a kind of exhaust system and the crude oil solid content analysis equipment comprising the exhaust system. BACKGROUND

[0002] In the process of crude oil solid content analysis, crude oil sample is usually heated to a certain temperature to separate volatile components therein. During heating, light hydrocarbons, hydrogen sulfide, carbon dioxide and other volatile organic compounds in crude oil are released from crude oil to form volatile gases. Currently, the volatile gases generated in the process of crude oil solid content analysis are generally directly discharged to a waste gas treatment device through the exhaust pipeline of the crude oil solid content analysis equipment.

[0003] However, directly discharging volatile gases to a waste gas treatment device may increase the burden of the waste gas treatment device, which may cause the concentration of volatile gases to exceed the design processing capacity of the waste gas treatment device. On the other hand, it may also miss some components in the volatile gases that are difficult to be treated by the waste gas treatment device. During the entire process, corrosive substances in the volatile gases that are not effectively treated may corrode the exhaust pipeline and the waste gas treatment device. Moreover, volatile gases usually have an odor and are toxic, which may seriously affect the air quality of the surrounding area and the health of nearby personnel.

[0004] Therefore, it is urgent to develop a technology for pretreating volatile gases before they enter a waste gas treatment device to ensure the effective treatment of volatile gases, thereby meeting environmental protection requirements, reducing the burden on the waste gas treatment device and lowering operating costs. SUMMARY

[0005] The utility model aims to solve the problem that volatile gases generated in the process of crude oil solid content analysis are directly discharged to a waste gas treatment device and are ultimately difficult to be effectively treated.

[0006] To achieve the above-mentioned purpose, the utility model provides an exhaust system, which comprises an exhaust pipeline, a condenser and a condensate collection container. The exhaust pipeline comprises a first pipe section and a second pipe section. The second pipe section extends in a vertical direction and has a side wall connected to the outlet end of the first pipe section. The condenser comprises a condensing cylinder connected to the upper end of the second pipe section and a condensing pipe at least partially arranged inside the condensing cylinder. The condensate collection container is connected to the lower end of the second pipe section and has a first baffle arranged inside. The first baffle is used to at least partially block the downward flow of gases.

[0007] Optionally, both ends of the condensing pipe extend to the outside of the condensing cylinder and are connected to a refrigeration machine. The refrigeration machine is used to provide circulating cooling liquid.

[0008] Optionally, the lower end of the condensing cylinder is an inlet end, the liquid outlet end of the condensing pipe is close to the inlet end of the condensing cylinder, and the liquid outlet end of the condensing pipe is communicated with the liquid inlet end of the refrigerating machine.

[0009] Optionally, the condensate collecting container comprises an inner wall, an outer wall and a flow layer formed between the inner wall and the outer wall, and the first baffle is hollow inside and communicated with the flow layer.

[0010] Optionally, the outer wall of the condensate collecting container is formed with a cooling liquid inlet end and a cooling liquid outlet end, the cooling liquid inlet end is communicated with the liquid outlet end of the condensing pipe through a hose, and the cooling liquid outlet end is communicated with the liquid inlet end of the refrigerating machine through a hose.

[0011] Optionally, the first baffle is provided with at least two, and the plurality of first baffles are spaced apart in the vertical direction and oppositely arranged.

[0012] Optionally, the condensate collecting container is a prism, and the first baffle is a rectangle.

[0013] Optionally, the inclination angle of the first baffle is 15-45°.

[0014] Optionally, the condensing cylinder is provided with a second baffle, and the extension direction of the second baffle is perpendicular to the air inlet direction.

[0015] The utility model discloses a second aspect provides a crude oil solid content analysis equipment, this crude oil solid content analysis equipment includes exhaust system.

[0016] Through the above technical scheme, the volatile gas generated in the crude oil solid content analysis process can be effectively pretreated when passing through the condenser. Among them, the volatile gas flowing downward in the exhaust pipeline will be hindered by the first baffle, thereby tending to flow upward and enter the condensing cylinder, and then contact the condensing pipe in the condensing cylinder and exchange heat. In the heat exchange process, the volatile gas will change from gas to liquid, and the condensed liquid will be received by the first baffle and further flow along the set path under the guidance of the first baffle, and finally be effectively collected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the overall structure schematic diagram of exhaust system;

[0018] Fig. 2 It is the local structure schematic diagram of exhaust system;

[0019] Fig. 3 It is the overhead structure schematic diagram of condensate collecting container.

[0020] REFERENCE SIGNS

[0021] 11, exhaust pipe; 111, first pipe section; 112, second pipe section; 12, condenser; 121, condenser cylinder; 122, condenser pipe; 13, condensate collection container; 131, first baffle; 132, condensate collection container inner wall; 133, condensate collection container outer wall; 1331, cooling liquid inlet end; 1332, cooling liquid outlet end; 134, flow-through layer; 14, hose; 2, refrigerator DETAILED DESCRIPTION

[0022] The embodiments of the present application will be further described in conjunction with the drawings and examples. The detailed description and drawings of the following examples are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, and the present application can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] The present application provides these embodiments in order to make the present application thorough and complete, and fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values described in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0024] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In addition, "first", "second" and similar words used in the present application do not mean any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0026] It should be further noted that in the description of the present application, unless otherwise explicitly defined and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0027] All the terms used in the present application have the same meaning as understood by the ordinary skilled in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that the terms defined in, for example, a general dictionary should be interpreted to have the same meaning as their meaning in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise explicitly defined herein.

[0028] The known techniques, methods and devices for the ordinary skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be regarded as part of the specification.

[0029] As shown in Figs. 1-3 The present application discloses an exhaust system, which comprises an exhaust pipeline 11, a condenser 12 and a condensate collecting container 13. The exhaust pipeline 11 comprises a first pipe section 111 and a second pipe section 112. The second pipe section 112 extends in a vertical direction and connects the outlet end of the first pipe section 111. The condenser 12 comprises a condenser cylinder 121 connected to the upper end of the second pipe section 112 and a condenser pipe 122 at least partially arranged inside the condenser cylinder 121. The condensate collecting container 13 is connected to the lower end of the second pipe section 112 and is internally provided with a first baffle 131. The first baffle 131 is used to at least partially block the downward flow of gas.

[0030] Specifically, the exhaust pipe 11 is mainly used for discharging volatile gas generated in the process of analyzing the solid content of crude oil. The first pipe section 111 of the exhaust pipe 11 can be a straight pipe section and is horizontally arranged. The straight pipe section can more smoothly discharge exhaust gas, effectively improve the exhaust efficiency, and simplify the structure, thereby helping to reduce manufacturing costs and maintenance difficulty. The outlet end of the first pipe section 111 can be welded to the side wall of the second pipe section 112. Specifically, an opening is formed in the side wall of the second pipe section 112 according to the size of the outlet end of the first pipe section 111, and then the joint between the outlet end of the first pipe section 111 and the opening edge of the side wall of the second pipe section 112 is welded. The outlet end of the first pipe section 111 can also be connected to the second pipe section 112 through a T-shaped tee joint. The T-shaped tee joint includes an inlet and two outlets. The inlet is connected to the outlet end of the first pipe section 111, the upper end outlet is connected to the lower end of the second pipe section 112, and the lower end outlet is connected to the condensate collecting container 13.

[0031] The lower end of the condensing cylinder 121 is an inlet end, and the inlet end of the condensing cylinder 121 is connected to the upper end of the second pipe section 112. The upper end of the condensing cylinder 121 is an outlet end. The condensing cylinder 121 is hollow inside and is provided with a condensing pipe 122. The inside of the condensing cylinder 121 is kept airtight except for the inlet end and the outlet end, so that exhaust gas can only enter from the inlet end of the condensing cylinder 121 and be discharged from the outlet end of the condensing cylinder 121 after passing through the condensing pipe 122. The condensing pipe 122 can be spiral-shaped. The spiral-shaped condensing pipe 122 can contact exhaust gas over a larger area, thereby improving the condensing effect.

[0032] The condensate collecting container 13 is used to collect the condensate formed on the outer wall of the condensing pipe 122. Specifically, the condensate flows along the pipe wall of the condensing pipe 122, the inner wall of the condensing cylinder 121, and the inner wall of the second pipe section 112 in sequence and then enters the condensate collecting container 13. Alternatively, when the condensate film formed on the pipe wall of the condensing pipe 122 is thick enough, the condensate will also vertically drip into the condensate collecting container 13.

[0033] The first baffle 131 arranged inside the condensate collecting container 13 is mainly used to prevent the exhaust gas from entering the inside of the condensate collecting container 13 from the upper end of the condensate collecting container 13 in the vertical direction to a certain extent. Specifically, the first baffle 131 is connected and supported to the inner side wall of the condensate collecting container 13, and extends in the horizontal direction or extends downwardly at a certain angle (for example, 30° angle). Thus, the first baffle 131 will cover the flow area of the condensate collecting container 13 to different degrees according to its projection area on the horizontal plane. For the uncovered flow area, the exhaust gas can normally pass through when flowing from top to bottom. For the covered flow area, when the exhaust gas flows from top to bottom and contacts the upper surface of the first baffle 131, the downward flow path of the exhaust gas will be blocked, so that the exhaust gas cannot continue to flow in the original direction (i.e., vertically downward), and the flow direction of the exhaust gas will change, either flowing reversely to the upper area of the baffle and then flowing into the condensing cylinder 121, or continuing its flow path along the upper surface of the first baffle 131.

[0034] The working process and principle of the exhaust system for pre-treating volatile gas: first, the exhaust gas enters the second pipe section 112 from the inlet end of the first pipe section 111; second, the exhaust gas flows along the first pipe section 111 to the second pipe section 112, and most of the exhaust gas in the second pipe section 112 will flow upward and enter the inside of the condensing cylinder 121 along the lower end of the condensing cylinder 121, because the exhaust gas in the second pipe section 112 is blocked by the first baffle 131 when further flowing downward; then, the exhaust gas continues to flow upward in the inside of the condensing cylinder 121 and contacts the condensing pipe 122, and the exhaust gas exchanges heat with the condensing pipe 122 when contacting the condensing pipe 122, and the volatile gas in the exhaust gas is cooled and forms condensate on the pipe wall of the condensing pipe 122; finally, the remaining exhaust gas is discharged from the outlet end of the condensing cylinder 121, and the condensate drops or flows into the condensate collecting container 13.

[0035] Optionally, the two ends of the condensing pipe 122 extend to the outside of the condensing cylinder 121 and are connected with the refrigerator 2 for providing circulating cooling liquid. Specifically, two through holes are formed on the side wall of the condensing cylinder 121, which are respectively located near the lower end and the upper end of the condensing cylinder 121, and the two ends of the condensing pipe 122 extend to the outside of the condensing cylinder 121 through the two through holes and are connected with the refrigerator 2. In the refrigerator 2, the cooling liquid that absorbs the heat released by the volatile gas can release heat and prepare for the next cycle. Therefore, the refrigerator 2 can effectively absorb and transfer heat, keep the temperature of the circulating cooling liquid stable, and ensure that the equipment works within the normal temperature range. The continuous thermodynamic cycle is as follows: the cooling liquid absorbs external heat (for example, the heat released by the volatile gas) in the condensing cylinder 121 and enters the refrigerator 2 as a heat transfer medium; the cooling liquid that has absorbed external heat exchanges heat with the cooling medium provided by the refrigerator 2 in the refrigerator 2, releases the external heat it carries, and the external heat released again is taken away by the cooling medium of the refrigerator 2, at the same time, the temperature of the cooling liquid is reduced and enters the condensing cylinder 121 again. Further, a temperature sensor can be provided in the refrigerator 2 to monitor the temperature of the cooling liquid. It is worth noting that the gap between the through hole on the side wall of the condensing cylinder 121 and the condensing pipe 122 needs to be sealed to avoid exhaust gas from being discharged along the through hole.

[0036] Optionally, the lower end of the condensing cylinder 121 is the inlet end, the liquid outlet end of the condensing pipe 122 is close to the inlet end of the condensing cylinder 121, and the liquid outlet end of the condensing pipe 122 communicates with the liquid inlet end of the refrigerator 2. Specifically, in the condensing cylinder 121, the cooling liquid in the condensing pipe 122 flows downward, while the volatile gas flows upward, and the cooling liquid and the volatile gas flow in opposite directions to form counterflow heat exchange, which is beneficial to uniformly transferring heat to the cooling liquid and improving the condensation rate and efficiency.

[0037] Optionally, the condensing liquid collecting container 13 includes a condensing liquid collecting container inner wall 132, a condensing liquid collecting container outer wall 133, and a flow passage layer 134 formed between the condensing liquid collecting container inner wall 132 and the condensing liquid collecting container outer wall 133, and the first baffle 131 is hollow inside and communicates with the flow passage layer 134. Specifically, the main purpose of providing the flow passage layer 134 is to be able to inject cooling liquid therein to realize heat exchange between the volatile gas and the cooling liquid in the condensing liquid collecting container 13. As shown in FIG. 6, the flow passage layer 134 communicates with the hollow area inside the first baffle 131, so that the cooling liquid entering the flow passage layer 134 can also enter the hollow area inside the first baffle 131, thereby absorbing the heat of the volatile gas when the volatile gas contacts the surface of the condensing liquid collecting container inner wall 132 and the first baffle 131, forming condensing liquid and further collecting the formed condensing liquid. The volatile gas here is mainly the volatile gas flowing directly from the first pipe section 111. Fig. 2 As shown in FIG. 6, the flow passage layer 134 communicates with the hollow area inside the first baffle 131, so that the cooling liquid entering the flow passage layer 134 can also enter the hollow area inside the first baffle 131, thereby absorbing the heat of the volatile gas when the volatile gas contacts the surface of the condensing liquid collecting container inner wall 132 and the first baffle 131, forming condensing liquid and further collecting the formed condensing liquid. The volatile gas here is mainly the volatile gas flowing directly from the first pipe section 111.

[0038] Optionally, as shown in Fig. 3 the condensate collection container 13 is provided with a cooling liquid inlet end 1331 and a cooling liquid outlet end 1332 on the outer wall 133. The cooling liquid inlet end 1331 is connected to the liquid outlet end of the condenser pipe 122 through the hose 14, and the cooling liquid outlet end 1332 is connected to the liquid inlet end of the refrigeration machine 2 through the hose 14. Of course, the cooling liquid inlet end 1331 and the cooling liquid outlet end 1332 can also be directly connected to the refrigeration machine 2 through the hose 14, thereby independently forming a cooling liquid circulation to avoid the cooling liquid from not meeting the temperature standard when entering the through-flow layer 134 due to first heat absorption. The specific arrangement needs to be combined with the actual working conditions to balance the condensation cost and the condensation effect as much as possible.

[0039] Optionally, the first baffle 131 is provided with at least two, and the plurality of first baffles 131 are spaced apart in the vertical direction and oppositely arranged. Specifically, as shown in Fig. 2 two or more oppositely arranged first baffles 131 can further prevent the volatile gas from flowing downward, and when the first baffles 131 are hollow and flow through the cooling liquid, the condensation area can be increased and the condensation effect can be improved.

[0040] Optionally, the condensate collection container 13 is a prism, and the first baffle 131 is a rectangle. Specifically, as shown in Fig. 3 the projection area of the rectangular first baffle 131 on the horizontal plane can be easily set to be very close to the projection area of the prism-shaped condensate collection container 13 on the horizontal plane, thereby reducing the through-flow area of the volatile gas flowing downward and more effectively preventing it from flowing downward. Similarly, when the first baffles 131 are hollow and flow through the cooling liquid, since the proportion of the projection area of the rectangular first baffle 131 on the horizontal plane to the projection area of the prism-shaped condensate collection container 13 on the horizontal plane is positively correlated with the condensation effect, the condensation area can be maximized by maximizing the projection area of the rectangular first baffle 131 on the horizontal plane, thereby maximizing the condensation effect.

[0041] Optionally, the inclination angle of the first baffle 131 is 15-45°. Specifically, as shown in Fig. 2 the horizontal arrangement of the first baffle 131 can be not conducive to the flow of the condensate thereon, and the inclined downward arrangement of the first baffle 131 can better guide the condensate to flow downward along the upper surface of the first baffle 131 by the self-weight of the condensate, thereby effectively collecting the condensate. The inclination angle range of 15-45° is conducive to balancing the functions of blocking the gas and guiding the liquid of the first baffle 131.

[0042] Optionally, the second baffle is arranged in the condensing cylinder 121, and the extending direction of the second baffle is perpendicular to the air inlet direction. The second baffle is supported on the inner wall of the condensing cylinder 121, and the second baffle can reduce the flow area of the volatile gas flowing upward, so that the volatile gas needs more time to pass through the condenser 12 and sufficiently exchanges heat with the cooling liquid in the condensing pipe 122. The second baffle can be arranged in plurality, and the plurality of second baffles are oppositely arranged to make the volatile gas flowing upward flow along an S-shaped path, further increase the time of the volatile gas passing through the condenser 12, and improve the condensing effect. It should be noted that the condensing liquid mainly flows downward along the pipe wall of the condensing pipe 122 and is collected, so that the horizontal extension of the second baffle basically does not affect the flow of the condensing liquid.

[0043] The utility model discloses another aspect a kind of crude oil solid content analysis equipment, waste gas produced by the crude oil solid content analysis equipment will first pass through exhaust system, volatile gas in it is pretreated by exhaust system, then remaining waste gas enters waste gas treatment device, and remaining waste gas is handled by waste gas treatment device.

[0044] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this. Within the technical concept range of the utility model, the technical scheme of the utility model can be variously simply modified, including that various specific technical features are combined in any suitable mode. In order to avoid unnecessary repetition, the utility model does not further describe various possible combination modes. But these simple modifications and combinations should also be regarded as the disclosed contents of the utility model, and all belong to the protection range of the utility model.

Claims

1. An exhaust system, characterized in that, The system includes an exhaust pipe (11), a condenser (12), and a condensate collection container (13). The exhaust pipe (11) includes a first pipe section (111) and a second pipe section (112). The second pipe section (112) extends vertically and its sidewall is connected to the outlet end of the first pipe section (111). The condenser (12) includes a condenser cylinder (121) connected to the upper end of the second pipe section (112) and a condenser tube (122) at least partially disposed inside the condenser cylinder (121). The condensate collection container (13) is connected to the lower end of the second pipe section (112) and has a first baffle (131) disposed inside. The first baffle (131) is used to at least partially block the downward flow of gas.

2. The exhaust system according to claim 1, characterized in that, The two ends of the condenser tube (122) extend to the outside of the condenser cylinder (121) and are connected to the refrigerator (2), which is used to provide circulating coolant.

3. The exhaust system according to claim 2, characterized in that, The lower end of the condenser cylinder (121) is the inlet end, the liquid outlet end of the condenser tube (122) is close to the inlet end of the condenser cylinder (121), and the liquid outlet end of the condenser tube (122) is connected to the liquid inlet end of the refrigerator (2).

4. The exhaust system according to claim 2, characterized in that, The condensate collection container (13) includes an inner wall (132), an outer wall (133), and a flow passage layer (134) formed between the inner wall (132) and the outer wall (133). The first baffle (131) is hollow inside and communicates with the flow passage layer (134).

5. The exhaust system according to claim 4, characterized in that, The outer wall (133) of the condensate collection container has a coolant inlet (1331) and a coolant outlet (1332). The coolant inlet (1331) is connected to the outlet of the condenser (122) through a hose (14), and the coolant outlet (1332) is connected to the inlet of the refrigerator (2) through the hose (14).

6. The exhaust system according to claim 1, characterized in that, At least two first baffles (131) are provided, and multiple first baffles (131) are distributed at intervals along the vertical direction and adjacent first baffles (131) are arranged opposite each other.

7. The exhaust system according to claim 1, characterized in that, The condensate collection container (13) is prismatic, and the first baffle (131) is rectangular.

8. The exhaust system according to claim 1, characterized in that, The tilt angle of the first baffle (131) is 15-45°.

9. The exhaust system according to claim 1, characterized in that, The condenser cylinder (121) is provided with a second baffle, the extension direction of which is perpendicular to the air inlet direction.

10. A crude oil solids content analysis device, characterized in that, Includes the exhaust system described in any one of claims 1-9.

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