Membrane separation type oil gas recovery device for condensing oil gas

Abstract

The utility model discloses a membrane separation type oil gas recovery device for condensing oil gas, which relates to the technical field of oil gas separation and recovery, comprises a main body unit, and is characterized by further comprising a separation unit and a negative pressure unit which are arranged in the main body unit, and a pipeline unit arranged on the surface of the main body unit, the separation unit comprises an oil-gas separation membrane assembly arranged in the main body unit, a positive pressure cavity and a negative pressure cavity which are respectively formed in two sides of the oil-gas separation membrane assembly, a mounting groove formed in the top of the oil-gas separation membrane assembly, and a mounting piece arranged in the mounting groove. According to the membrane separation type oil gas recovery device for condensing oil gas, through the arrangement of the separation unit and the negative pressure unit, rapid separation of oil gas is achieved, rapid formation of pressure difference is accelerated, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas separation and recovery, in particular to a membrane separation type oil and gas recovery device for condensing oil and gas. Background Art

[0002] The traditional activated carbon adsorption method of oil and gas recovery equipment uses activated carbon with good adsorption capacity for oil and gas. The oil and gas are preferentially adsorbed by the activated carbon, and the air is discharged to achieve the purpose of oil and gas separation. A set of oil and gas recovery equipment needs to be loaded with about 600 tons of activated carbon. The activated carbon generally loses its activity after 3 to 5 years of use and no longer has adsorption capacity. At this time, all the old activated carbon in the device needs to be replaced with new activated carbon. Because the activated carbon adsorbs oil and gas for a long time and then decomposes the oil and gas, a large amount of oil and gas remains in the activated carbon that is about to lose its activity and cannot be completely decomposed.

[0003] Jianjingsuo, in its authorization announcement number CN219663208U, discloses a membrane separation type oil and gas recovery device for condensed oil and gas, comprising a condensed oil and gas separation box, wherein an oil and gas separation membrane assembly is movably installed at the inner center of the condensed oil and gas separation box, and a positive pressure chamber and a negative pressure chamber are respectively provided on both sides of the oil and gas separation membrane assembly, and a negative pressure pump is fixedly installed on the top of the negative pressure chamber. The overall device utilizes the difference in transmission rate of oil and gas and air molecules when passing through the polymer membrane leaves to achieve separation of the two, and has the advantages of energy saving, environmental protection, and compliance with emission standards.

[0004] Although the above scheme achieves separation of oil and gas and air molecules by utilizing the difference in transmission rate when they pass through polymer membrane leaves, and has the advantages of energy saving, environmental protection, and emission compliance, the pressure difference rate generated by the negative pressure pump alone is slow and the working efficiency is low. For this reason, we propose a membrane separation oil and gas recovery device that condenses oil and gas. Utility Model Content

[0005] The main purpose of the utility model is to provide a membrane separation type oil and gas recovery device for condensing oil and gas, which solves the problem of slow pressure difference rate and low working efficiency generated by only a negative pressure pump by setting a separation unit and a negative pressure unit.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A membrane separation type oil and gas recovery device for condensing oil and gas, comprising a main unit, characterized in that it also comprises a separation unit and a negative pressure unit arranged inside the main unit, and a pipeline unit arranged on the surface of the main unit;

[0008] The separation unit includes an oil-gas separation membrane assembly disposed inside the main unit, a positive pressure chamber and a negative pressure chamber disposed on both sides of the oil-gas separation membrane assembly, a mounting groove provided on the top of the oil-gas separation membrane assembly, and a mounting member disposed in the mounting groove;

[0009] The negative pressure unit includes a negative pressure pump installed on the top of the main unit and connected to the negative pressure chamber, a heating groove opened on the side wall of the negative pressure pump, and a heating column installed in the heating groove.

[0010] Preferably, the main unit includes a condensing oil and gas separation box, a support base installed at the bottom of the condensing oil and gas separation box, and a sealing door opened on the side wall of the condensing oil and gas separation box.

[0011] Preferably, the main body unit further includes an opening and closing handle installed on the surface of the sealing door.

[0012] Preferably, the mounting part includes a movable through hole opened on the top of the condensed oil and gas separation box, a movable moving rod that passes through and is arranged in the movable through hole, a lifting seat installed on the top of the moving rod, a clamping plate installed on the bottom end of the moving rod, and a return spring that is sleeved on the side surface of the moving rod and fixedly connected to the clamping plate.

[0013] Preferably, the negative pressure unit further comprises two digital pressure sensors which are provided on the side wall of the condensing oil and gas separation box and are respectively connected to the positive pressure chamber and the negative pressure chamber.

[0014] Preferably, the piping unit includes a light group oil and gas inlet pipe installed at the top of the condensing oil and gas separation box and connected to the positive pressure chamber, an air outlet pipe installed at the bottom of the condensing oil and gas separation box and connected to the positive pressure chamber, and an oil and gas outlet pipe installed at the bottom of the condensing oil and gas separation box and connected to the negative pressure chamber.

[0015] Preferably, regulating valves are movably provided inside the oil and gas inlet pipe, the air outlet pipe and the oil and gas outlet pipe of the light group.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, by setting up a separation unit and a negative pressure unit, when the light group oil and gas of the super-condensing system passes through the inside of the light group oil and gas inlet pipe, a negative pressure is generated in the negative pressure chamber due to the operation of the negative pressure pump, and the pressure difference between the positive pressure chamber and the negative pressure chamber can be increased by setting up a heating column. The pressure difference is used to allow the oil and gas to preferentially pass through the membrane leaves. At this time, the oil and gas are instantly pulled to the inside of the negative pressure chamber on the other side of the oil and gas separation membrane assembly by the positive pressure and the reverse suction force. At this time, the mixed gas of oil and gas and air has been completely separated. Since the air is difficult to pass through the membrane leaves, it is blocked on the positive pressure side of the membrane. This achieves rapid separation of oil and gas, accelerates the rapid formation of pressure difference, and improves work efficiency; when the oil and gas separation membrane assembly needs to be replaced, first lift the lifting seat upwards, so that the moving rod drives the locking plate to move up, and compresses the return spring, so that the oil and gas separation membrane assembly is pulled out from the condensing oil and gas separation box and replaced, and then the force applied to the lifting seat is removed. Under the action of the return spring, the lifting seat can quickly engage with the oil and gas separation membrane assembly, thereby completing the convenient installation of the oil and gas separation membrane assembly and realizing rapid replacement of the oil and gas separation membrane assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model from above;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-section structure at the middle BB;

[0022] Figure 5 It is a rear view structural diagram of the utility model.

[0023] In the picture:

[0024] 1. Main unit; 101. Condensate oil and gas separation box; 102. Support base; 103. Sealed door; 104. Opening and closing handle;

[0025] 2. Separation unit; 201. Oil-gas separation membrane assembly; 202. Mounting slot; 203. Mounting piece; 2031. Moving rod; 2032. Lifting seat; 2033. Clamping plate; 2034. Return spring; 204. Positive pressure chamber; 205. Negative pressure chamber;

[0026] 3. Negative pressure unit; 301. Negative pressure pump; 302. Heating column; 303. Digital pressure sensor;

[0027] 4. Piping unit; 401. Light group oil and gas inlet pipe; 402. Air outlet pipe; 403. Oil and gas outlet pipe; 404. Regulating valve. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0029] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5 As shown, a membrane separation type oil and gas recovery device for condensing oil and gas includes a main unit 1, characterized in that it also includes a separation unit 2 and a negative pressure unit 3 arranged inside the main unit 1, and a pipeline unit 4 arranged on the surface of the main unit 1;

[0030] like Figure 3 As shown, the separation unit 2 includes an oil-gas separation membrane assembly 201 disposed inside the main unit 1, a positive pressure chamber 204 and a negative pressure chamber 205 disposed on both sides of the oil-gas separation membrane assembly 201, a mounting groove 202 provided on the top of the oil-gas separation membrane assembly 201, and a mounting member 203 disposed in the mounting groove 202. The arrangement of the oil-gas separation membrane assembly 201 can separate the positive pressure chamber 204 from the negative pressure chamber 205.

[0031] like Figure 3 As shown, the negative pressure unit 3 includes a negative pressure pump 301 installed on the top of the main unit 1 and connected to the negative pressure chamber 205, a heating tank opened on the side wall of the negative pressure pump 301, and a heating column 302 installed in the heating tank. The setting of the heating column 302 can change the internal temperature of the condensed oil and gas separation box 101, thereby accelerating the formation of a pressure difference between the positive pressure chamber 204 and the negative pressure chamber 205.

[0032] like Figure 1 As shown, the main unit 1 includes a condensing oil-gas separation box 101, a support base 102 installed at the bottom of the condensing oil-gas separation box 101, and a sealing door 103 opened on the side wall of the condensing oil-gas separation box 101. The setting of the sealing door 103 facilitates the subsequent replacement of the oil-gas separation membrane assembly 201.

[0033] like Figure 2 As shown, the main unit 1 further includes an opening and closing handle 104 installed on the surface of the sealing door 103 . The provision of the opening and closing handle 104 facilitates the opening and closing of the sealing door 103 .

[0034] like Figure 4As shown, the mounting part 203 includes a movable through hole opened on the top of the condensing oil and gas separation box 101, a movable moving rod 2031 that passes through and is arranged in the movable through hole, a pulling seat 2032 installed on the top of the moving rod 2031, a locking plate 2033 installed on the bottom end of the moving rod 2031, and a return spring 2034 that is sleeved on the side surface of the moving rod 2031 and fixedly connected to the locking plate 2033. The setting of the return spring 2034 facilitates the rapid locking between the locking plate 2033 and the mounting groove 202.

[0035] like Figure 5 As shown, the negative pressure unit 3 also includes two digital pressure sensors 303 opened on the side wall of the condensing oil and gas separation box 101 and connected to the positive pressure chamber 204 and the negative pressure chamber 205 respectively. The setting of the digital pressure sensor 303 can monitor the internal pressure of the positive pressure chamber 204 and the negative pressure chamber 205 in real time.

[0036] like Figure 5 As shown, the piping unit 4 includes a light group oil and gas inlet pipe 401 installed at the top of the condensing oil and gas separation box 101 and connected to the positive pressure chamber 204, an air outlet pipe 402 installed at the bottom of the condensing oil and gas separation box 101 and connected to the positive pressure chamber 204, and an oil and gas outlet pipe 403 installed at the bottom of the condensing oil and gas separation box 101 and connected to the negative pressure chamber 205. The setting of the oil and gas outlet pipe 403 facilitates the output of oil and gas after filtration and separation.

[0037] Regulating valves 404 are movably provided inside the light group oil and gas inlet pipe 401, the air outlet pipe 402 and the oil and gas outlet pipe 403. The setting of the regulating valve 404 facilitates the rapid opening and closing of the light group oil and gas inlet pipe 401, the air outlet pipe 402 and the oil and gas outlet pipe 403.

[0038] When the light group oil and gas of the supercondensing system passes through the interior of the light group oil and gas inlet pipe 401, negative pressure is generated in the negative pressure chamber 205 due to the operation of the negative pressure pump 301, and the pressure difference between the positive pressure chamber 204 and the negative pressure chamber 205 can be increased by setting the heating column 302. The oil and gas can preferentially pass through the membrane leaves due to the pressure difference. At this time, the oil and gas are instantly pulled to the interior of the negative pressure chamber 205 on the other side of the oil and gas separation membrane component 2 by the positive pressure and reverse suction force. At this time, the mixture of oil, gas and air has been completely separated. Since the air is difficult to pass through the membrane leaves, it is blocked on the positive pressure side of the membrane, thereby realizing the rapid separation of oil and gas, accelerating the rapid formation of pressure difference, and improving work efficiency. Example 2

[0039] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5As shown, a membrane separation type oil and gas recovery device for condensing oil and gas includes a main unit 1, characterized in that it also includes a separation unit 2 and a negative pressure unit 3 arranged inside the main unit 1, and a pipeline unit 4 arranged on the surface of the main unit 1;

[0040] like Figure 3 As shown, the separation unit 2 includes an oil-gas separation membrane assembly 201 disposed inside the main unit 1, a positive pressure chamber 204 and a negative pressure chamber 205 disposed on both sides of the oil-gas separation membrane assembly 201, a mounting groove 202 provided on the top of the oil-gas separation membrane assembly 201, and a mounting member 203 disposed in the mounting groove 202. The arrangement of the oil-gas separation membrane assembly 201 can separate the positive pressure chamber 204 from the negative pressure chamber 205.

[0041] like Figure 3 As shown, the negative pressure unit 3 includes a negative pressure pump 301 installed on the top of the main unit 1 and connected to the negative pressure chamber 205, a heating tank opened on the side wall of the negative pressure pump 301, and a heating column 302 installed in the heating tank. The setting of the heating column 302 can change the internal temperature of the condensed oil and gas separation box 101, thereby accelerating the formation of a pressure difference between the positive pressure chamber 204 and the negative pressure chamber 205.

[0042] like Figure 1 As shown, the main unit 1 includes a condensing oil-gas separation box 101, a support base 102 installed at the bottom of the condensing oil-gas separation box 101, and a sealing door 103 opened on the side wall of the condensing oil-gas separation box 101. The setting of the sealing door 103 facilitates the subsequent replacement of the oil-gas separation membrane assembly 201.

[0043] like Figure 2 As shown, the main unit 1 further includes an opening and closing handle 104 installed on the surface of the sealing door 103 . The provision of the opening and closing handle 104 facilitates the opening and closing of the sealing door 103 .

[0044] like Figure 4 As shown, the mounting part 203 includes a movable through hole opened on the top of the condensing oil and gas separation box 101, a movable moving rod 2031 that passes through and is arranged in the movable through hole, a pulling seat 2032 installed on the top of the moving rod 2031, a locking plate 2033 installed on the bottom end of the moving rod 2031, and a return spring 2034 that is sleeved on the side surface of the moving rod 2031 and fixedly connected to the locking plate 2033. The setting of the return spring 2034 facilitates the rapid locking between the locking plate 2033 and the mounting groove 202.

[0045] like Figure 5As shown, the negative pressure unit 3 also includes two digital pressure sensors 303 opened on the side wall of the condensing oil and gas separation box 101 and connected to the positive pressure chamber 204 and the negative pressure chamber 205 respectively. The setting of the digital pressure sensor 303 can monitor the internal pressure of the positive pressure chamber 204 and the negative pressure chamber 205 in real time.

[0046] like Figure 5 As shown, the piping unit 4 includes a light group oil and gas inlet pipe 401 installed at the top of the condensing oil and gas separation box 101 and connected to the positive pressure chamber 204, an air outlet pipe 402 installed at the bottom of the condensing oil and gas separation box 101 and connected to the positive pressure chamber 204, and an oil and gas outlet pipe 403 installed at the bottom of the condensing oil and gas separation box 101 and connected to the negative pressure chamber 205. The setting of the oil and gas outlet pipe 403 facilitates the output of oil and gas after filtration and separation.

[0047] When the oil-gas separation membrane assembly 201 needs to be replaced, first lift the lifting seat 2032 upwards, so that the moving rod 2031 drives the locking plate 2033 to move upward, and compresses the return spring 2034, so that the oil-gas separation membrane assembly 201 is pulled out from the condensing oil-gas separation box 101 and replaced. Then, the force applied to the lifting seat 2032 is removed. Under the action of the return spring 2034, the lifting seat 2032 can quickly engage with the oil-gas separation membrane assembly 201, thereby completing the convenient installation of the oil-gas separation membrane assembly 201 and realizing the rapid replacement of the oil-gas separation membrane assembly 201.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A membrane separation type oil and gas recovery device for condensing oil and gas, comprising a main unit (1), characterized in that: It also includes a separation unit (2) and a negative pressure unit (3) arranged inside the main unit (1), and a pipeline unit (4) arranged on the surface of the main unit (1); The separation unit (2) comprises an oil-gas separation membrane assembly (201) arranged inside the main unit (1), a positive pressure chamber (204) and a negative pressure chamber (205) respectively arranged on both sides of the oil-gas separation membrane assembly (201), a mounting groove (202) provided on the top of the oil-gas separation membrane assembly (201), and a mounting member (203) arranged in the mounting groove (202); The negative pressure unit (3) comprises a negative pressure pump (301) installed on the top of the main unit (1) and connected to the negative pressure chamber (205), a heating tank provided on the side wall of the negative pressure pump (301), and a heating column (302) installed in the heating tank.

2. The membrane separation type oil and gas recovery device for condensing oil and gas according to claim 1, characterized in that: The main unit (1) comprises a condensing oil and gas separation box (101), a support base (102) installed at the bottom of the condensing oil and gas separation box (101), and a sealing door (103) opened on the side wall of the condensing oil and gas separation box (101).

3. The membrane separation type oil and gas recovery device for condensing oil and gas according to claim 2, characterized in that: The main body unit (1) further comprises an opening and closing handle (104) mounted on the surface of the sealing door (103).

4. The membrane separation type oil and gas recovery device for condensing oil and gas according to claim 3, characterized in that: The mounting member (203) includes a movable through hole provided on the top of the condensing oil-gas separation box (101), a movable rod (2031) movably passing through and arranged in the movable through hole, a lifting seat (2032) installed at the top of the movable rod (2031), a locking plate (2033) installed at the bottom of the movable rod (2031), and a return spring (2034) sleeved on the side surface of the movable rod (2031) and fixedly connected to the locking plate (2033).

5. The membrane separation type oil and gas recovery device for condensing oil and gas according to claim 2, characterized in that: The negative pressure unit (3) further comprises two digital pressure sensors (303) provided on the side wall of the condensing oil and gas separation box (101) and respectively connected to the positive pressure chamber (204) and the negative pressure chamber (205).

6. The membrane separation type oil and gas recovery device for condensing oil and gas according to claim 2, characterized in that: The pipeline unit (4) comprises a light oil and gas inlet pipe (401) installed at the top of the condensing oil and gas separation box (101) and connected to the positive pressure chamber (204), an air outlet pipe (402) installed at the bottom of the condensing oil and gas separation box (101) and connected to the positive pressure chamber (204), and an oil and gas outlet pipe (403) installed at the bottom of the condensing oil and gas separation box (101) and connected to the negative pressure chamber (205).

7. The membrane separation type oil and gas recovery device for condensing oil and gas according to claim 6, characterized in that: Regulating valves (404) are movably provided inside the light group oil and gas inlet pipe (401), the air outlet pipe (402), and the oil and gas outlet pipe (403).

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