Diaphragm compressor partition leakage detection structure
By using an embedded membrane head structure and a zoned leak detection design, the problem of difficult detection of hydrogen leaks in diaphragm compressors at hydrogen refueling stations has been solved, enabling efficient and reliable operation of hydrogen diaphragm compressors and avoiding false alarms and increased manufacturing costs.
Patent Information
- Application Number
- CN202510777509.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2025-10-31
AI Technical Summary
Existing diaphragm compressors in hydrogen refueling stations have difficulty detecting hydrogen leaks, leading to frequent false alarms, increased operation and maintenance costs, and reduced sensitivity of operation and maintenance personnel. At the same time, the complex structure of the diaphragm results in high manufacturing costs.
It adopts an embedded diaphragm head structure and a zoned leakage detection design, including a gas-side diaphragm head, an oil-side diaphragm head, an oil distribution plate, and a diaphragm. Leaks on the gas-side and oil-side diaphragms are detected separately through zoned leakage channels, and gas, hydraulic oil leakage, and diaphragm rupture detection devices are set up to avoid false alarms.
It achieves efficient and reliable operation of hydrogen diaphragm compressor, avoids false alarms due to diaphragm rupture, reduces operation and maintenance costs, simplifies diaphragm structure, and reduces sealing area and manufacturing cost.
Smart Images
Figure CN120867991A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of diaphragm compressor technology, and in particular to a diaphragm compressor partition leakage detection structure. Background Technology
[0002] Diaphragm compressors, with their superior sealing performance, are the most widely used booster equipment in hydrogen refueling stations. Compared to reciprocating booster equipment, the superior sealing performance of diaphragm compressors stems from their transformation of the dynamic gas seal in the reciprocating gas piston into a static seal between the diaphragm and the gas-side cylinder head. This static seal provides a better sealing effect, leading to the perception of zero leakage in traditional chemical engineering. However, in hydrogen refueling station applications, due to the small molecular weight of hydrogen and its inherent tendency to leak, coupled with the high operating pressure (hydrogen needs to be boosted to 45MPa or 90MPa), even with a good static seal between the diaphragm and cylinder head, absolute zero leakage cannot be achieved with high-pressure hydrogen. Minor leaks occur as high-pressure hydrogen passes through the diaphragm.
[0003] Traditional diaphragm compressor designs do not consider leakage of the compressed medium through the diaphragm, thus only designing one diaphragm rupture alarm channel. Because the diaphragm is very thin, a typical diaphragm rupture alarm channel includes all leakage through the diaphragm; that is, gas or hydraulic oil leaking from a ruptured diaphragm, or gas or hydraulic oil leaking from the diaphragm seal, will accumulate in the alarm channel. When there is a small leak of gas or hydraulic oil through the diaphragm seal, the leaked gas or hydraulic oil gradually accumulates, eventually causing the pressure in the diaphragm rupture alarm channel to rise, thus triggering a false alarm. False alarms of diaphragm rupture increase the operation and maintenance costs of hydrogen refueling stations. Furthermore, frequent false alarms reduce the sensitivity of maintenance personnel, making it difficult for them to distinguish between genuine diaphragm rupture alarms and actual ruptures. This leads to situations where diaphragm ruptures occur without maintenance personnel shutting down the system, potentially resulting in the complete rupture of all three diaphragm layers and causing even greater losses to the entire hydrogen refueling station.
[0004] In addition, the existing diaphragm head structure requires not only a sealing structure between the gas-side diaphragm head and the oil-side diaphragm head, but also a diaphragm fixing structure, a diaphragm rupture detection annular groove, and a sealing structure for the annular groove on the outer annular plane. This requires a large diaphragm diameter and large diameters for both the gas-side and oil-side diaphragm heads, which not only increases the difficulty of sealing but also increases manufacturing costs. Summary of the Invention
[0005] The embodiments of this application provide a diaphragm compressor partitioned leakage detection structure. It not only enhances the sealing effect between the diaphragm and the cylinder head by setting an embedded diaphragm head structure, but also allows for the separate detection of gas-side diaphragm leakage, oil-side diaphragm leakage, and diaphragm rupture leakage through partitioned leakage channels. This avoids false alarms due to diaphragm rupture and ensures the efficient and reliable operation of the hydrogen diaphragm compressor in hydrogen refueling stations.
[0006] To achieve the above objectives, embodiments of this application provide a diaphragm compressor zoned leakage detection structure, including an embedded diaphragm head structure and a leakage detection structure. The embedded diaphragm head structure includes a gas-side diaphragm head, an oil-side diaphragm head, an oil distribution plate, and a diaphragm. The leakage detection structure includes a gas leakage detection device, a hydraulic oil leakage detection device, and a diaphragm rupture detection device. The gas-side diaphragm head has a "convex" shape; the oil-side diaphragm head has a "concave" shape; the oil distribution plate is disposed within the concave stop of the oil-side diaphragm head; a dome-shaped cavity is formed on the oil distribution plate; the gas-side diaphragm head and the oil-side diaphragm head are fastened together by bolts, and the diaphragm and the oil distribution plate are pressed between the gas-side diaphragm head and the oil-side diaphragm head from top to bottom; the gas-side diaphragm head and the diaphragm are sealed by a first seal and a second seal; the second seal is located outside the first seal; a gas leakage detection channel is formed on the gas-side diaphragm head; the inlet of the gas leakage detection channel connects to the first sealing area formed by the first seal, the gas-side diaphragm head, the second seal, and the diaphragm, and the outlet is provided with gas... Leakage detection device; the oil distribution plate and the diaphragm are sealed by a third seal and a fourth seal; the fourth seal is located outside the third seal; a first hydraulic oil leakage detection channel is opened on the oil distribution plate; a second hydraulic oil leakage detection channel is opened on the oil-side diaphragm head; the inlet of the first hydraulic oil leakage detection channel is connected to the second sealing area formed by the third seal, the oil distribution plate, the fourth seal, and the diaphragm, and the outlet is connected to the inlet of the second hydraulic oil leakage detection channel; a hydraulic oil leakage detection device is provided at the outlet of the second hydraulic oil leakage detection channel; the outer circular surface of the air-side diaphragm head and the stop wall surface of the oil-side diaphragm head are sealed by a fifth seal; the outer circular surface of the oil distribution plate and the stop wall surface of the oil-side diaphragm head are sealed by a sixth seal; a diaphragm rupture detection port is opened on the oil-side diaphragm head; the inlet of the diaphragm rupture detection port is connected to the third sealing area formed by the fifth seal, the air-side diaphragm head, the diaphragm, the second seal, the fourth seal, the sixth seal, and the air-side diaphragm head, and a diaphragm rupture detection device is provided at the outlet.
[0007] Furthermore, the gas leak detection channel includes an annular gas guide groove, a gas guide hole, and a gas leak detection port connected in sequence. The annular gas guide groove is disposed on the lower surface of the gas-side membrane head and located between the first sealing element and the second sealing element; the gas leak detection port penetrates the outer circular surface of the gas-side membrane head.
[0008] Furthermore, the first hydraulic oil leakage detection channel includes an annular oil guide groove and an oil guide hole that are interconnected; the second hydraulic oil leakage detection channel is a hydraulic oil leakage detection port; the annular oil guide groove is disposed on the upper surface of the distribution plate and located between the third seal and the fourth seal; the hydraulic oil leakage detection port penetrates the outer circular surface of the oil-side diaphragm head.
[0009] Furthermore, the lower surface of the oil distribution plate is sealed to the bottom of the groove of the oil-side diaphragm head by a seventh seal; the oil distribution plate, the seventh seal, the oil-side diaphragm head, and the sixth seal together form a fourth sealing area; the hydraulic oil leakage detection port is connected to the oil guide hole through the fourth sealing area.
[0010] Furthermore, the outer circular surface of the gas-side diaphragm head is provided with an upper annular groove for diaphragm rupture detection, and the outer circular surface of the oil distribution plate is provided with a lower annular groove for diaphragm rupture detection; both the upper and lower annular grooves for diaphragm rupture detection are connected to the diaphragm rupture detection port.
[0011] Furthermore, the gas leak detection device is a flow measurement unit, and a one-way valve is provided at the outlet of the flow measurement unit; the flow measurement unit is an automatic flow meter; the automatic flow meter is communicatively connected to an industrial control computer; the industrial control computer can receive the flow value sent by the automatic flow meter and determine whether a gas leak has occurred.
[0012] Furthermore, the gas leak detection device is a flow measurement unit, and a one-way valve is provided at the outlet of the flow measurement unit; the flow measurement unit is a float flow meter.
[0013] Furthermore, the hydraulic oil leakage detection device is an oil tank, and a level gauge is installed in the oil tank; the level gauge is a self-controlled level gauge; the self-controlled level gauge is communicatively connected to an industrial control computer; the industrial control computer can receive the level value sent by the self-controlled level gauge and determine whether a hydraulic oil leakage has occurred.
[0014] Furthermore, the hydraulic oil leakage detection device is an oil tank, and a level gauge is installed in the oil tank; the level gauge is a level mirror.
[0015] Furthermore, the diaphragm rupture detection device is a pressure transmitter; the pressure transmitter is communicatively connected to an industrial control computer; the industrial control computer can receive the pressure detection value sent by the pressure transmitter and determine whether a diaphragm rupture has occurred, and immediately send a stop signal when a diaphragm rupture alarm is triggered.
[0016] This application has the following advantages over the prior art:
[0017] 1. The diaphragm compressor partition leakage detection structure in this application embodiment sets an embedded diaphragm head structure, thereby eliminating the need to add a diaphragm fixing structure. Under the same displacement, the diaphragm diameter is smaller, and the planar sealing area between the diaphragm and the cylinder head is also smaller, resulting in a better sealing effect.
[0018] 2. The diaphragm compressor partitioned leakage detection structure in this application embodiment can detect leakage of the gas-side diaphragm, leakage of the oil-side diaphragm, and leakage of diaphragm rupture separately by partitioning the leakage channels, thereby avoiding false alarms of diaphragm rupture and ensuring the efficient and reliable operation of the hydrogen diaphragm compressor. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the diaphragm compressor zone leakage detection structure according to an embodiment of this application;
[0021] Figure 2 This is a schematic diagram of the embedded membrane head structure in the diaphragm compressor partition leakage detection structure of this application embodiment;
[0022] Figure 3 for Figure 2 A magnified view of section I in the middle. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connections, detachable connections, or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.
[0027] Referring to Figures 1 to 3 , an embodiment of this application provides a diaphragm compressor partition leakage detection structure, including an embedded diaphragm head structure 1 and a leakage detection structure 2.
[0028] The embedded diaphragm head structure 1 includes a gas-side diaphragm head 11, an oil-side diaphragm head 12, an oil distribution plate 13, a diaphragm 14, and bolts 15.
[0029] The leakage detection structure 2 includes a gas leakage detection device, a hydraulic oil leakage detection device, and a diaphragm rupture detection device.
[0030] Referring to Figure 2 and Figure 3 , the gas-side diaphragm head 11 is a "convex" shaped structure. The oil-side diaphragm head 12 is a "concave" shaped structure. The oil distribution plate 13 is arranged in the concave stop of the oil-side diaphragm head 12. A "domed" cavity is formed on the oil distribution plate 13, and the shape of this cavity is the same as that in the oil-side diaphragm head 12 but with the opposite orientation.
[0031] The diaphragm 14 is pressed between the gas-side diaphragm head 11 and the oil distribution plate 13. The bolts 15 fasten and connect the gas-side diaphragm head 11 and the oil-side diaphragm head 12, and press the diaphragm 14 and the oil distribution plate 13.
[0032] Thus, the embedded diaphragm head structure in the embodiment of this application does not need to add a diaphragm fixing structure. With the same displacement, the diameter of the diaphragm is smaller, and the planar sealing area between the diaphragm and the cylinder head is smaller, having a better sealing effect.
[0033] Referring to Figure 3 , the gas-side diaphragm head 11 and the diaphragm 14 are sealed by a first seal 16 and a second seal 17. The second seal 17 is located outside the first seal 16. Both the first seal 16 and the second seal 17 are "O" - rings.
[0034] Specifically, an outer ring of the lower surface of the gas-side diaphragm head 11 has an annular plane in contact with the diaphragm 14. Two seal grooves are provided on the annular plane of the gas-side diaphragm head 11, and the first seal 16 and the second seal 17 are respectively arranged in the corresponding seal grooves.
[0035] Referring to Figures 1 to 3A gas leak detection channel 18 is provided on the gas-side diaphragm head 11. The gas leak detection channel 18 includes an annular gas guide groove 181, a gas guide hole 182, and a gas leak detection port 183 connected in sequence. The annular gas guide groove 181 is disposed on the lower surface of the gas-side diaphragm head 11 and located between the first seal 16 and the second seal 17. The gas guide hole 182 is arranged in a vertical direction. The gas leak detection port 183 penetrates the outer circular surface of the gas-side diaphragm head 11 radially. The inlet of the annular gas guide groove 181 connects to the first sealing area formed by the first seal 16, the gas-side diaphragm head 11, the second seal 17, and the diaphragm 14. A gas leak detection device is provided at the gas leak detection port 183.
[0036] When the working pressure inside the gas chamber is high, causing a minor leak at the first seal 16 or when the first seal 16 fails, the gas leaking between the diaphragm 14 and the gas-side membrane head 11 will collect in the annular gas guide groove 181. The second seal 17 on the outside of the annular gas guide groove 181 seals the annular gas guide groove 181, ensuring that the gas leaking into the annular gas guide groove 181 will not continue to leak outward along the diaphragm 14. The gas leaking between the diaphragm 14 and the gas-side membrane head 11 will eventually be discharged through the gas leak detection port 183.
[0037] The gas leak detection device is a flow measurement unit 21. A one-way valve 22 is provided at the outlet of the flow measurement unit 21 to release the leaked gas. The flow measurement unit 21 measures the gas leak rate and sets a leak threshold. When the leak rate is less than the threshold, the seal between the diaphragm 14 and the gas-side membrane head 11 is considered to be normal. When the leak rate is greater than the threshold, the seal between the diaphragm 14 and the gas-side membrane head 11 is considered to be ineffective.
[0038] The flow measurement unit 21 can be an automatic control instrument, such as an automatic control flow meter, which transmits the measured leakage flow signal to the industrial control computer for automatic judgment, or it can be a field display instrument, such as a float flow meter, which is checked and judged by manual inspection.
[0039] Continue to refer to Figures 1 to 3 The oil distribution plate 13 and the diaphragm 14 are connected by a third seal 19 and a fourth seal 110. The fourth seal 110 is located outside the third seal 19. Both the third seal 19 and the fourth seal 110 are O-rings.
[0040] Specifically, the outer ring of the upper surface of the oil distribution plate 13 is provided with an annular plane that contacts the diaphragm 14. The annular plane of the oil distribution plate 13 is provided with two sealing grooves, and the third sealing element 19 and the fourth sealing element 110 are respectively disposed in the corresponding sealing grooves.
[0041] A first hydraulic oil leakage detection channel is provided on the distribution plate 13. The first hydraulic oil leakage detection channel includes an annular guide groove 111 and a guide hole 112 that are interconnected. The annular guide groove 111 is provided on the upper surface of the distribution plate 13 and is located between the third seal 19 and the fourth seal 110. The guide hole 112 is arranged in a vertical direction. A second hydraulic oil leakage detection channel is provided on the oil-side diaphragm head 12. The second hydraulic oil leakage detection channel is a hydraulic oil leakage detection port 113. The hydraulic oil leakage detection port 113 penetrates the outer circular surface of the oil-side diaphragm head 12 radially. The inlet of the annular guide groove 111 is connected to the second sealing area formed by the third seal 19, the distribution plate 13, the fourth seal 110, and the diaphragm 14. The inlet of the hydraulic oil leakage detection port 113 is connected to the guide hole 112. A hydraulic oil leakage detection device is provided at the outlet of the hydraulic oil leakage detection port 113.
[0042] The bottom plane of the oil distribution plate 13 is sealed to the bottom plane of the concave stop of the oil-side film head 12 by a seventh seal 116. The seventh seal 116 is an O-ring. Specifically, a sealing groove is formed on the bottom of the concave stop of the oil-side film head 12, and the seventh seal 116 is disposed in the sealing groove at the bottom of the concave stop of the oil-side film head 12.
[0043] When the working pressure inside the oil chamber is high, causing a minor leak at the third seal 19 or when the third seal 19 fails, the hydraulic oil leaking between the diaphragm 14 and the distribution plate 13 will collect in the annular guide groove 111. The fourth seal 110 on the outside of the annular guide groove 111 seals the annular guide groove 111, ensuring that the hydraulic oil leaking into the annular guide groove 111 will not continue to leak outward along the diaphragm 14. The hydraulic oil leaking between the diaphragm 14 and the distribution plate 13 will eventually be discharged through the hydraulic oil leak detection port 113.
[0044] The hydraulic oil leakage detection device is an oil sump 23. Leaking hydraulic oil is collected in the oil sump 23, and the leakage rate is determined by the change in the oil level in the oil sump 23. The oil level in the sump can be determined by transmitting a signal from an automatic control instrument level gauge to an industrial control computer, or it can be determined by manually observing the level mirror. When the oil level in the sump rises rapidly, it is considered that the seal between the diaphragm and the distribution plate, or the seal between the distribution plate and the oil-side diaphragm head, has failed.
[0045] The outer surface of the gas-side diaphragm head 11 is sealed to the stop wall surface of the oil-side diaphragm head 12 by a fifth seal 114. The outer surface of the oil distribution plate 13 is sealed to the stop wall surface of the oil-side diaphragm head 12 by a sixth seal 115. Both the fifth seal 114 and the sixth seal 115 are O-rings.
[0046] Specifically, both the outer circular surface of the air-side diaphragm head 11 and the outer circular surface of the oil distribution plate 13 are provided with sealing grooves, and the fifth sealing element 114 is disposed in the sealing groove of the air-side diaphragm head 11. The sixth sealing element 115 is disposed in the sealing groove of the oil distribution plate 13.
[0047] The lower part of the outer circular surface of the gas-side diaphragm head 11 is also provided with an upper annular groove 117 for diaphragm rupture detection that penetrates the lower surface, and the upper part of the outer circular surface of the oil distribution plate 13 is also provided with a lower annular groove 118 for diaphragm rupture detection that penetrates the upper surface. Both the upper annular groove 117 and the lower annular groove 118 for diaphragm rupture detection are located between the fifth seal 114 and the sixth seal 115. The upper annular groove 117 and the lower annular groove 118 for diaphragm rupture detection together form a diaphragm rupture detection groove.
[0048] A diaphragm rupture detection port 119 is provided on the oil-side diaphragm head 12, and the diaphragm rupture detection port 119 extends radially through the outer circumference of the oil-side diaphragm head 12. The inlet of the diaphragm rupture detection port 119 is connected to the diaphragm rupture detection groove, and a diaphragm rupture detection device is provided at the outlet.
[0049] When the gas-side diaphragm or the oil-side diaphragm ruptures, the leaked gas or hydraulic oil flows through the intermediate diaphragm to the diaphragm rupture detection groove. The fifth seal 114 and the sixth seal 115 seal the diaphragm rupture detection groove, preventing the gas or hydraulic oil flowing into the groove from leaking out again. The diaphragm rupture detection device determines whether the diaphragm is ruptured based on the pressure in the diaphragm rupture detection groove. When the diaphragm ruptures, the leaked gas or hydraulic oil accumulates in the diaphragm rupture detection groove, causing the pressure inside the groove to rise. When the diaphragm rupture detection device detects the pressure increase, it triggers a diaphragm rupture alarm.
[0050] The diaphragm rupture detection device is an automatic control instrument, such as pressure transmitter 24, which transmits the pressure signal to the industrial control computer for judgment. After triggering the diaphragm rupture alarm, it immediately sends a stop signal.
[0051] In summary, by designing the leakage channels in separate zones, leaks in the gas-side diaphragm, oil-side diaphragm, and diaphragm rupture can be detected separately, avoiding false alarms caused by diaphragm rupture and ensuring the efficient and reliable operation of the diaphragm compressor.
[0052] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A diaphragm compressor zone leakage detection structure, characterized in that, It includes an embedded diaphragm head structure and a leak detection structure; the embedded diaphragm head structure includes a gas-side diaphragm head, an oil-side diaphragm head, an oil distribution plate, and a diaphragm; the leak detection structure includes a gas leak detection device, a hydraulic oil leak detection device, and a diaphragm rupture detection device; The air-side diaphragm head has a "convex" shaped structure; the oil-side diaphragm head has a "concave" shaped structure; the oil distribution plate is set in the concave stop of the oil-side diaphragm head; a "dome-shaped" cavity is opened on the oil distribution plate; the air-side diaphragm head and the oil-side diaphragm head are fastened by bolts, and the diaphragm and the oil distribution plate are pressed between the air-side diaphragm head and the oil-side diaphragm head from top to bottom; The gas-side membrane head and the diaphragm are sealed by a first seal and a second seal; the second seal is located outside the first seal; a gas leak detection channel is opened on the gas-side membrane head; the inlet of the gas leak detection channel is connected to the first sealing area formed by the first seal, the gas-side membrane head, the second seal and the diaphragm, and a gas leak detection device is provided at the outlet; The oil distribution plate and the diaphragm are sealed by a third seal and a fourth seal; the fourth seal is located outside the third seal; a first hydraulic oil leakage detection channel is opened on the oil distribution plate; a second hydraulic oil leakage detection channel is opened on the oil-side diaphragm head; the inlet of the first hydraulic oil leakage detection channel is connected to the second sealing area formed by the third seal, the oil distribution plate, the fourth seal and the diaphragm, and the outlet is connected to the inlet of the second hydraulic oil leakage detection channel; a hydraulic oil leakage detection device is provided at the outlet of the second hydraulic oil leakage detection channel. The outer circular surface of the gas-side diaphragm head is sealed to the stop wall surface of the oil-side diaphragm head by a fifth seal; the outer circular surface of the oil distribution plate is sealed to the stop wall surface of the oil-side diaphragm head by a sixth seal; a diaphragm rupture detection port is provided on the oil-side diaphragm head; the inlet of the diaphragm rupture detection port is connected to the third sealing area formed by the fifth seal, the gas-side diaphragm head, the diaphragm, the second seal, the fourth seal, the sixth seal, and the gas-side diaphragm head, and a diaphragm rupture detection device is provided at the outlet.
2. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The gas leak detection channel includes an annular gas guide groove, a gas guide hole, and a gas leak detection port connected in sequence. The annular gas guide groove is disposed on the lower surface of the gas-side membrane head and is located between the first sealing element and the second sealing element; the gas leak detection port penetrates the outer circular surface of the gas-side membrane head.
3. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The first hydraulic oil leakage detection channel includes an annular oil guide groove and an oil guide hole that are interconnected; the second hydraulic oil leakage detection channel is a hydraulic oil leakage detection port; the annular oil guide groove is disposed on the upper surface of the distribution plate and located between the third seal and the fourth seal; the hydraulic oil leakage detection port penetrates the outer circular surface of the oil-side diaphragm head.
4. The diaphragm compressor zone leakage detection structure according to claim 3, characterized in that, The lower surface of the oil distribution plate is sealed to the bottom of the groove of the oil-side diaphragm head by a seventh seal; the oil distribution plate, the seventh seal, the oil-side diaphragm head and the sixth seal together form a fourth sealing area; the hydraulic oil leakage detection port is connected to the oil guide hole through the fourth sealing area.
5. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The outer circular surface of the gas-side diaphragm head is also provided with an upper annular groove for diaphragm rupture detection, and the outer circular surface of the oil distribution plate is also provided with a lower annular groove for diaphragm rupture detection; both the upper annular groove and the lower annular groove for diaphragm rupture detection are connected to the diaphragm rupture detection port.
6. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The gas leak detection device is a flow measurement unit, and a one-way valve is provided at the outlet of the flow measurement unit; the flow measurement unit is an automatic flow meter; the automatic flow meter is connected to an industrial control computer; the industrial control computer can receive the flow value sent by the automatic flow meter and determine whether a gas leak has occurred.
7. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The gas leak detection device is a flow measurement unit, and a one-way valve is provided at the outlet of the flow measurement unit; the flow measurement unit is a float flow meter.
8. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The hydraulic oil leakage detection device is an oil tank, and a level gauge is installed in the oil tank; the level gauge is a self-controlled level gauge; the self-controlled level gauge is connected to an industrial control computer; the industrial control computer can receive the level value sent by the self-controlled level gauge and determine whether a hydraulic oil leakage has occurred.
9. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The hydraulic oil leakage detection device is an oil tank, and a level gauge is installed in the oil tank; the level gauge is a level mirror.
10. The diaphragm compressor zone leakage detection structure according to claim 1, characterized in that, The diaphragm rupture detection device is a pressure transmitter; the pressure transmitter is connected to an industrial control computer; the industrial control computer can receive the pressure detection value sent by the pressure transmitter and determine whether a diaphragm rupture has occurred. When a diaphragm rupture alarm is triggered, a shutdown signal is immediately sent.