Oil collecting box for oil-gas separation filter element
By setting an oil collection box at the bottom of the oil-gas separator filter element and using a counterweight float to control the oil drain port, the problem of oil accumulation at the bottom of the oil-gas separator filter element is solved, achieving effective oil discharge, ensuring the performance and efficiency of the filter element, and extending its service life.
Patent Information
- Application Number
- CN202422837597.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing oil-gas separator filter elements are prone to oil accumulation at the bottom, leading to decreased performance and reduced filtration efficiency.
An oil collection box is installed at the bottom of the oil-gas separator filter element. The opening and closing of the oil drain port is controlled by a counterweight float, and the accumulated oil is discharged through the oil drain pipe.
To prevent oil buildup, ensure filter element performance and efficiency, extend service life, and improve oil drainage accuracy.
Smart Images
Figure CN223594392U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air compressor oil gas separation filter element technical field, especially to an oil gas separation filter element oil collecting box. BACKGROUND
[0002] The existing air compressor oil gas separation filter element separates the oil gas mixture entering the oil gas separator. The existing oil gas separation filter element bottom is prone to oil accumulation. When the oil accumulation reaches a certain amount, the performance of the oil gas separation filter element decreases, and the filtering efficiency decreases.
[0003] For example, Chinese patent publication No. CN221074640U, published on June 4, 2024, named "Oil gas separation device and screw air compressor", including oil gas cylinder and separation filter, oil gas cylinder is equipped with gas pipe, oil gas cylinder and machine head form gas channel, gas channel is connected with separation filter through conveying pipe, gas channel is equipped with initial filter component; The initial filter component includes an inner baffle arranged on the outer periphery of the machine head and an outer baffle arranged on the inner periphery of the oil gas cylinder. The inner baffle and the outer baffle are arranged in the axial direction of the oil gas cylinder. The outer baffle and the inner baffle can collide with the oil gas in the gas channel to separate the suspended oil droplets.
[0004] The existing patent has the following shortcomings: the existing oil gas separation filter element bottom is prone to oil accumulation. When the oil accumulation reaches a certain amount and cannot be discharged, the performance of the oil gas separation filter element decreases, resulting in reduced filtering efficiency of the oil gas separation filter element. INVENTION CONTENTS
[0005] The utility model aims at solving the problem of oil accumulation at the bottom of the existing oil gas separation filter element, which leads to performance degradation and reduced filtering efficiency of the oil gas separation filter element, and provides an oil gas separation filter element oil collecting box to prevent oil accumulation at the bottom of the oil gas separation filter element.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] An oil gas separation filter element oil collecting box is arranged at the bottom end of the air compressor oil gas separation filter element, including a box body connected with the oil gas separation filter element, the box body is connected with an oil discharge pipe, an oil discharge port and a counterweight float opening and closing the oil discharge port are arranged between the box body and the oil discharge pipe, and the counterweight float is located above the oil discharge port. The oil gas separation filter element oil collecting box has the following advantages: the oil gas separation filter element oil collecting box is arranged at the bottom end of the air compressor oil gas separation filter element and communicates with the oil gas separation filter element, so that the oil accumulation at the bottom of the oil gas separation filter element enters the box body. When the oil accumulation in the box body reaches a certain amount, the counterweight float opens the oil discharge port and discharges through the oil discharge pipe.
[0008] The technical scheme has the following advantages:
[0009] In one aspect, the oil collection box is arranged at the bottom end of the oil-gas separation filter element to drain the accumulated oil at the bottom of the oil-gas separation filter element, prevent the accumulated oil generated in the filtering process from accumulating at the bottom end of the oil-gas separation filter element, ensure the performance and filtering efficiency of the oil-gas separation filter element, and improve the service life of the oil-gas separation filter element.
[0010] On the other hand, the box body is used to collect the accumulated oil of the oil-gas separation filter element, the oil drain pipe is used to drain the accumulated oil out of the oil-gas separator, an oil drain port is arranged between the box body and the oil drain pipe, the oil drain port communicates the box body and the oil drain pipe, and the counterweight float is located above the oil drain port and opens and closes the oil drain port. The counterweight float closes the oil drain port by its own counterweight, and when the accumulated oil in the box body reaches a certain amount, the counterweight float rises by buoyancy and opens the oil drain port for oil drainage. The counterweight of the counterweight float is set according to actual needs to control the minimum oil amount in the box body, prevent the oil-gas separation filter element and the gas in the oil collection box from being drained out through the oil drain pipe, and improve the oil drainage accuracy of the oil collection box. When the oil amount in the box body reaches the set minimum oil amount, the counterweight float closes the oil drain port and disconnects the box body and the oil drain pipe.
[0011] As a preferred, it further comprises a limiting piece for limiting the counterweight float above the oil drain port. The limiting piece limits the counterweight float above the oil drain port, so that the counterweight float cooperates with the oil drain port to close the oil drain port under its own gravity.
[0012] As a preferred, the box body and the oil drain pipe are communicated through an oil drain valve, and the oil drain port is located in the oil drain valve.
[0013] As a preferred, the counterweight float comprises a counterweight float ball and a valve needle cooperating with the oil drain port, and the counterweight float ball drives the valve needle to open and close the oil drain port. Through the cooperation of the valve needle and the oil drain port, the counterweight float ball plays a role in driving the valve needle to rise and fall.
[0014] As a preferred, the lower end of the valve needle is located in the oil drain valve and cooperates with the oil drain port, the outer peripheral wall of the lower end of the valve needle is a conical surface with a large upper end and a small lower end, and the inner wall of the oil drain port is a conical surface cooperating with the lower end of the valve needle.
[0015] As a preferred, the limiting piece is a compression spring, the compression spring is located in the oil drain valve, the upper end of the compression spring is connected with the upper end of the inner cavity of the oil drain valve, the lower end is connected with the valve needle, and the compression spring limits the valve needle above the oil drain port. The compression spring is sleeved on the valve needle, which plays a guiding role on the one hand, so that the valve needle rises and falls in the vertical direction, and plays a compression role on the other hand, so that the lower end of the valve needle cooperates with the oil drain port.
[0016] As a preferred, the counterweight float ball is located in the box body, and the valve needle is connected below the counterweight float ball and extends into the oil drain valve to cooperate with the oil drain port.
[0017] As preferred, the oil discharge port is located at the bottom end of the box body, and the counterweight float is located in the box body. In the technical solution, the counterweight float is lowered by its gravity and covers the oil discharge port at the bottom of the box body, so as to close the oil discharge port; the counterweight float is raised by the buoyancy generated by the accumulated oil, so as to open the oil discharge port.
[0018] As preferred, the limiting piece is a tension spring, the box body and the oil discharge pipe are communicated through a valve body, the upper end of the tension spring is connected with the counterweight float, and the lower end of the tension spring is connected with the inner wall of the valve body, and the tension spring limits the counterweight float on the oil discharge port. The tension spring limits the counterweight float above the oil discharge port, so as to open and close the oil discharge port.
[0019] As preferred, the oil discharge pipe is connected with the main machine suction port of the air compressor. The oil discharge pipe inputs the accumulated oil into the main machine of the air compressor through the suction of the main machine suction port of the air compressor, so as to play a lubricating role. The suction of the main machine suction port of the air compressor does not exist continuously, and the suction is small, so that the opening and closing of the oil discharge port is realized by the counterweight float itself.
[0020] Therefore, the oil gas separation filter element has the advantages that: the oil accumulated in the oil gas separation filter element during the filtering process is prevented, the performance and filtering efficiency of the oil gas separation filter element are ensured, and the service life of the oil gas separation filter element is prolonged; the counterweight of the counterweight float is set according to actual requirements, the minimum oil amount in the box body is controlled, the gas in the oil gas separation filter element and the oil collecting box is prevented from being discharged by the oil discharge pipe, and the oil discharge accuracy of the oil collecting box is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a kind of partial sectional view of the utility model embodiment two in air compressor.
[0022] Figure 2 is a kind of sectional view of the utility model embodiment two oil discharge port closed state.
[0023] Figure 3 is a kind of sectional view of the utility model embodiment two oil discharge port open state.
[0024] Figure 4 is a kind of sectional view of the utility model embodiment three oil discharge port closed state.
[0025] As shown in the figure:
[0026] Box body 1, oil discharge pipe 2,
[0027] Counterweight float 3, counterweight float ball 3.1, valve needle 3.2,
[0028] Limiting piece 4, oil discharge valve 5, oil discharge port 6, valve body 7, filter element 8. DETAILED DESCRIPTION
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.
[0030] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 An oil collection box for an oil-gas separator filter element 8 is shown. It is installed at the bottom of the oil-gas separator filter element 8 of an air compressor. It includes a box body 1 that connects to the oil-gas separator filter element 8. The box body 1 is connected to an oil drain pipe 2. An oil drain port 6 and a counterweight float 3 that opens and closes the oil drain port 6 are provided between the box body 1 and the oil drain pipe 2. The counterweight float 3 is located above the oil drain port 6.
[0031] Existing oil-gas separator filter elements 8 for air compressors separate the oil-gas mixture entering the oil-gas separator. However, oil easily accumulates at the bottom of these existing filter elements 8. When the accumulated oil reaches a certain amount, the performance of the filter element 8 deteriorates, and its filtration efficiency weakens. To address this problem of oil accumulation at the bottom of existing oil-gas separator filter elements 8, leading to performance degradation and reduced filtration efficiency, an oil collection box for the oil-gas separator filter element 8 is provided to prevent oil accumulation at its bottom.
[0032] In this embodiment, an oil-gas separator filter element 8 uses an oil collection box, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the oil-gas separator filter element 8 is installed at the bottom of the air compressor and is connected to the oil-gas separator filter element 8 so that the oil accumulated at the bottom of the oil-gas separator filter element 8 enters the box 1. When the oil accumulated in the box 1 reaches a certain amount, the counterweight float 3 opens the oil drain port 6 and discharges it through the oil drain pipe 2.
[0033] This technical solution has the following advantages:
[0034] On the one hand, this technical solution sets an oil collection box at the bottom of the oil-gas separator filter element 8 to drain the oil accumulated at the bottom of the oil-gas separator filter element 8, preventing the oil generated during the filtration process from accumulating at the bottom of the oil-gas separator filter element 8, ensuring the performance and filtration efficiency of the oil-gas separator filter element 8, and improving the service life of the oil-gas separator filter element 8.
[0035] On the other hand, the housing 1 is used to collect the accumulated oil from the oil-gas separator filter element 8, and the oil drain pipe 2 is used to discharge the accumulated oil out of the oil-gas separator. An oil drain port 6 is provided between the housing 1 and the oil drain pipe 2, connecting the housing 1 and the oil drain pipe 2. A counterweight float 3 is located above the oil drain port 6 and opens and closes it. The counterweight float 3 closes the oil drain port 6 by its own weight. When the accumulated oil in the housing 1 reaches a certain amount, the counterweight float 3 rises due to buoyancy and opens the oil drain port 6 to discharge the oil. The counterweight of the counterweight float 3 is set according to actual needs to control the minimum oil volume in the housing 1, preventing the oil drain pipe 2 from discharging the gas from the oil-gas separator filter element 8 and the oil collection box, thus improving the oil discharge accuracy of the oil collection box. When the oil volume in the housing 1 reaches the set minimum oil volume, the counterweight float 3 closes the oil drain port 6, disconnecting the housing 1 from the oil drain pipe 2.
[0036] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it also includes a limiting member 4 that limits the counterweight float 3 above the oil drain port 6. The limiting member 4 limits the counterweight float 3 above the oil drain port 6, so that the counterweight float 3 cooperates with the oil drain port 6, so that the counterweight float 3 closes the oil drain port 6 under its own weight.
[0037] Example 2, as Figure 1 , Figure 2 , Figure 3 The oil collection box shown is for an oil-gas separator filter element 8, installed at the bottom of the oil-gas separator filter element 8 in an air compressor. It includes a box body 1 connected to the oil-gas separator filter element 8, an oil drain pipe 2 connected to the box body 1, an oil drain port 6 and a counterweight float 3 for opening and closing the oil drain port 6 are provided between the box body 1 and the oil drain pipe 2, and the counterweight float 3 is located above the oil drain port 6. It also includes a limiting member 4 that restricts the counterweight float 3 above the oil drain port 6.
[0038] In this implementation, such as Figure 1 , Figure 2 , Figure 3 As shown, the housing 1 and the drain pipe 2 are connected by a drain valve 5, and the drain port 6 is located inside the drain valve 5. The counterweight float 3 includes a counterweight float 3.1 and a valve needle 3.2 that cooperates with the drain port 6. The counterweight float 3.1 drives the valve needle 3.2 to open and close the drain port 6. Through the cooperation of the valve needle 3.2 and the drain port 6, the counterweight float 3.1 drives the valve needle 3.2 to rise and fall. The lower end of the valve needle 3.2 is located inside the drain valve 5 and cooperates with the drain port 6. The outer peripheral wall of the lower end of the valve needle 3.2 is a conical surface that is larger at the top and smaller at the bottom, and the inner wall of the drain port 6 is a conical surface that cooperates with the lower end of the valve needle 3.2.
[0039] Further optimizations were made to the limiting component 4, such as... Figure 1 , Figure 2 , Figure 3As shown, the limiting member 4 is a compression spring, which is located in the oil discharge valve 5, the upper end of the compression spring is connected with the upper end of the inner cavity of the oil discharge valve 5, the lower end is connected with the valve needle 3.2, and the compression spring limits the valve needle 3.2 on the oil discharge port 6. The compression spring is sleeved on the valve needle 3.2, which plays a guiding role to make the valve needle 3.2 move up and down along the vertical direction, and plays a compression role to make the lower end of the valve needle 3.2 cooperate with the oil discharge port 6.
[0040] Specifically, as shown in Figure 1 、 Figure 2 、 Figure 3 , the counterweight float ball 3.1 is located in the box body 1, and the valve needle 3.2 is connected below the counterweight float ball 3.1 and extends into the oil discharge valve 5 to cooperate with the oil discharge port 6.
[0041] In summary, the embodiment has the following beneficial effects: preventing the oil accumulated in the filtering process from accumulating at the bottom end of the oil-gas separation filter element 8, ensuring the performance and filtering efficiency of the oil-gas separation filter element 8, and improving the service life of the oil-gas separation filter element 8; the box body 1 is used to collect the oil accumulated in the oil-gas separation filter element 8, the oil discharge pipe 2 is used to discharge the oil outside the oil-gas separator, the oil discharge port 6 is arranged between the box body 1 and the oil discharge pipe 2, the oil discharge port 6 communicates the box body 1 and the oil discharge pipe 2, and the counterweight float body 3 is located above the oil discharge port 6 and opens and closes the oil discharge port 6. The counterweight float body 3 closes the oil discharge port 6 by its own counterweight, when the oil accumulated in the box body 1 reaches a certain amount, the counterweight float body 3 rises by buoyancy and opens the oil discharge port 6 for oil discharge. The counterweight of the counterweight float body 3 is set according to actual needs, controls the minimum oil amount in the box body 1, prevents the oil discharge pipe 2 from discharging the gas in the oil-gas separation filter element 8 and the oil collecting box, improves the oil discharge accuracy of the oil collecting box, and when the oil amount in the box body 1 reaches the set minimum oil amount, the counterweight float body 3 closes the oil discharge port 6, disconnecting the box body 1 and the oil discharge pipe 2.
[0042] In the third embodiment, as shown in Figure 4 , an oil-gas separation filter element 8 oil collecting box is arranged at the bottom end of the oil-gas separation filter element 8 of an air compressor, which comprises a box body 1 communicating with the oil-gas separation filter element 8, the box body 1 is connected with an oil discharge pipe 2, an oil discharge port 6 and a counterweight float body 3 opening and closing the oil discharge port 6 are arranged between the box body 1 and the oil discharge pipe 2, and the counterweight float body 3 is located above the oil discharge port 6. It also comprises a limiting member 4 limiting the counterweight float body 3 above the oil discharge port 6.
[0043] In the embodiment, as shown in Figure 4 , the oil discharge port 6 is located at the bottom end of the box body 1, and the counterweight float body 3 is located in the box body 1. In the technical solution, the counterweight float body 3 descends by its own gravity and covers the oil discharge port 6 at the bottom of the box body 1 to close the oil discharge port 6; the counterweight float body 3 rises by the buoyancy generated by the oil to open the oil discharge port 6.
[0044] The limiting member 4 is further optimized, as shown in Figure 4As shown, the limiting component 4 is a tension spring. The housing 1 and the oil drain pipe 2 are connected by a valve body 7. The upper end of the tension spring is connected to the counterweight float 3, and the lower end is connected to the inner wall of the valve body 7. The tension spring limits the counterweight float 3 to the oil drain port 6. The tension spring limits the counterweight float 3 above the oil drain port 6, thereby achieving the purpose of opening and closing the oil drain port 6.
[0045] In summary, this embodiment has the following beneficial effects: it prevents oil generated during the filtration process from accumulating at the bottom of the oil-gas separator filter element 8, ensuring the performance and filtration efficiency of the oil-gas separator filter element 8, and improving the service life of the oil-gas separator filter element 8; the housing 1 is used to collect the accumulated oil of the oil-gas separator filter element 8, and the oil drain pipe 2 is used to discharge the accumulated oil outside the oil-gas separator; an oil drain port 6 is provided between the housing 1 and the oil drain pipe 2, and the oil drain port 6 connects the housing 1 and the oil drain pipe 2; the counterweight float 3 is located above the oil drain port 6 and opens and closes the oil drain port 6. The counterweight float 3 closes the oil drain port 6 by its own counterweight; when the accumulated oil in the housing 1 reaches a certain amount, the counterweight float 3 rises by buoyancy and opens the oil drain port 6 to discharge the oil. The counterweight of the counterweight float 3 is set according to actual needs to control the minimum oil volume in the box 1, prevent the oil drain pipe 2 from discharging the gas in the oil-gas separator filter element 8 and the oil collection box, and improve the oil discharge accuracy of the oil collection box. When the oil volume in the box 1 reaches the set minimum oil volume, the counterweight float 3 closes the oil drain port 6 and disconnects the box 1 and the oil drain pipe 2.
[0046] Example 4, as Figure 1 , Figure 2 , Figure 3 , Figure 4 The oil collection box shown is for an oil-gas separator filter element 8, installed at the bottom of the oil-gas separator filter element 8 in an air compressor. It includes a box body 1 connected to the oil-gas separator filter element 8, an oil drain pipe 2 connected to the box body 1, an oil drain port 6 and a counterweight float 3 for opening and closing the oil drain port 6 are provided between the box body 1 and the oil drain pipe 2, and the counterweight float 3 is located above the oil drain port 6. The oil drain pipe 2 is connected to the air compressor's main intake port. The oil drain pipe 2 uses the suction force of the air compressor's main intake port to input the accumulated oil into the air compressor's main unit for lubrication. Since the suction force of the air compressor's main intake port is not continuous and is relatively small, the opening and closing of the oil drain port 6 is achieved by the counterweight float 3 itself.
[0047] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it also includes a limiting member 4 that restricts the counterweight float 3 above the oil drain port 6. The limiting member 4 restricts the counterweight float 3 above the oil drain port 6, so that the counterweight float 3 cooperates with the oil drain port 6, so that the counterweight float 3 closes the oil drain port 6 under its own weight. At this time, the limiting member 4 ensures that the counterweight float 3 remains above the oil drain port 6 even if the suction force of the air intake is insufficient.
[0048] Oil collection boxes have two structural types:
[0049] Embodiment I: as shown in Figure 1 , Figure 2 , Figure 3 , the box body 1 and the oil discharge pipe 2 are communicated through the oil discharge valve 5, and the oil discharge port 6 is located in the oil discharge valve 5. The counterweight float 3 includes a counterweight float ball 3.1 and a valve needle 3.2 matched with the oil discharge port 6, and the counterweight float ball 3.1 drives the valve needle 3.2 to open and close the oil discharge port 6. Through the cooperation of the valve needle 3.2 and the oil discharge port 6, the counterweight float ball 3.1 plays a role in driving the valve needle 3.2 to rise and fall. The lower end of the valve needle 3.2 is located in the oil discharge valve 5 and matched with the oil discharge port 6, and the outer peripheral wall of the lower end of the valve needle 3.2 is a conical surface with a large upper end and a small lower end, and the inner wall of the oil discharge port 6 is a conical surface matched with the lower end of the valve needle 3.2.
[0050] Further optimization of the limiting piece 4, as shown in Figure 1 , Figure 2 , Figure 3 , the limiting piece 4 is a compression spring, which is located in the oil discharge valve 5, the upper end of the compression spring is connected with the upper end of the inner cavity of the oil discharge valve 5, and the lower end is connected with the valve needle 3.2, and the compression spring limits the valve needle 3.2 on the oil discharge port 6. The compression spring is sleeved on the valve needle 3.2, which plays a guiding role in one aspect, so that the valve needle 3.2 rises and falls along the vertical direction, and plays a compression role in the other aspect, so that the lower end of the valve needle 3.2 is matched with the oil discharge port 6.
[0051] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 , the counterweight float ball 3.1 is located in the box body 1, and the valve needle 3.2 is connected below the counterweight float ball 3.1 and extends into the oil discharge valve 5 to match with the oil discharge port 6.
[0052] Embodiment II: as shown in Figure 4 , the oil discharge port 6 is located at the bottom end of the box body 1, and the counterweight float 3 is located in the box body 1. In this technical solution, the counterweight float 3 is lowered by its own gravity and covers the oil discharge port 6 at the bottom of the box body 1, so that the oil discharge port 6 is closed; the counterweight float 3 is raised by the buoyancy generated by the accumulated oil, so that the oil discharge port 6 is opened.
[0053] Further optimization of the limiting piece 4, as shown in Figure 4 , the limiting piece 4 is a tension spring, the box body 1 and the oil discharge pipe 2 are communicated through the valve body 7, the upper end of the tension spring is connected with the counterweight float 3, and the lower end is connected with the inner wall of the valve body 7, and the tension spring limits the counterweight float 3 on the oil discharge port 6. The tension spring limits the counterweight float 3 above the oil discharge port 6, so as to open and close the oil discharge port 6.
[0054] In conclusion, the embodiment has the following beneficial effects: preventing oil liquid generated in the filtering process from accumulating at the bottom end of the oil-gas separation filter element 8, ensuring the performance and filtering efficiency of the oil-gas separation filter element 8, and improving the service life of the oil-gas separation filter element 8; the counterweight of the counterweight float 3 is set according to actual needs, the minimum oil amount in the box body 1 is controlled, the oil-gas separation filter element 8 and the gas in the oil collecting box are prevented from being discharged by the oil discharge pipe 2, and the oil discharge accuracy of the oil collecting box is improved.
[0055] The above-described specific embodiments are only the preferred embodiments of the utility model, and do not limit the specific implementation range of the utility model. Any equivalent changes made according to the shape and structure of the utility model should be included in the protection range of the utility model.
Claims
1. An oil collecting box for an oil-gas separation filter element, which is provided at a bottom end of an oil-gas separation filter element of an air compressor, characterized in that, The box body includes a communication oil-gas separation filter element, the box body is connected with an oil discharge pipe, an oil discharge port and a counterweight float body for opening and closing the oil discharge port are arranged between the box body and the oil discharge pipe, the counterweight float body is located above the oil discharge port; the box body and the oil discharge pipe are communicated through an oil discharge valve, the counterweight float body includes a counterweight float ball and a valve needle matched with the oil discharge port, the counterweight float ball drives the valve needle to open and close the oil discharge port, the outer peripheral wall of the lower end of the valve needle is a conical surface with a large upper end and a small lower end, and the inner wall of the oil discharge port is a conical surface matched with the lower end of the valve needle.
2. The oil collection box for use in an oil and gas separation cartridge according to claim 1, characterized in that, The limiting member is further arranged for limiting the counterweight float body above the oil discharge port.
3. The oil collection box for use in an oil and gas separation cartridge according to claim 2, characterized in that, The oil discharge port is located in the oil discharge valve.
4. The oil collection box for use in an oil and gas separation cartridge according to claim 3, characterized in that, The lower end of the valve needle is located in the oil discharge valve and matched with the oil discharge port.
5. The oil collection box for use in an oil and gas separation cartridge according to claim 3 or 4, characterized in that, The limiting member is a compression spring, the compression spring is located in the oil discharge valve, the upper end of the compression spring is connected with the upper end of the inner cavity of the oil discharge valve, the lower end of the compression spring is connected with the valve needle, and the compression spring limits the valve needle above the oil discharge port.
6. The oil collection box for use in an oil and gas separation cartridge according to claim 3 or 4, characterized in that, The counterweight float ball is located in the box body, the valve needle is connected below the counterweight float ball and extends into the oil discharge valve to be matched with the oil discharge port.
7. The oil collecting box for use in an oil and gas separating cartridge according to claim 1 or 2 or 3 or 4, characterized in that, The oil discharge pipe is connected with the air compressor main machine suction port.
8. The oil collection box for use in an oil and gas separation cartridge according to claim 4, characterized in that, The oil discharge port communicates the box body and the oil discharge pipe.
9. The oil collection box for use in an oil and gas separation cartridge according to claim 5, characterized in that, The compression spring is sleeved on the valve needle.