An air path manifold block

Abstract

The utility model discloses a kind of gas path collection blocks for spectrometer, belong to gas path integration technical field.The gas path collection block includes cuboid metal matrix, the upper side, the lower side, the left side, the right side and top of metal matrix are formed seventeen blind holes by drilling processing, each blind hole is distributed according to preset position and realizes specific fluid communication relationship;The opening end of each blind hole is respectively adopted according to functional requirement open design, screwed plug sealing plugging or detachable sealing connection quick connector, swivel joint, pressure reducing valve, pressure switch, solenoid valve and flowmeter etc. The utility model is integrated design by integration, replace traditional dispersed pipe connection structure, significantly reduce the number of joint, reduce gas leakage risk, while having the advantages of compact structure, installation and maintenance are convenient, high reliability, effectively solve the technical defects of existing spectrometer gas path system, applicable to the gas path transmission demand of various precision spectrometer.

Description

Technical Field

[0001] This utility model relates to the field of spectrometer gas path integration technology, specifically to a compact and highly sealed gas path assembly block for spectrometers. Background Technology

[0002] Spectrometers are precision analytical instruments, and the stability of the gas path system directly affects the final detection accuracy. If there are fluctuations or leaks in the gas path, the detection data may be deviated, which will affect the accuracy of the analysis results and fail to meet the requirements of precision detection.

[0003] Currently, most spectrometers on the market use a decentralized piping system, where independent pipes are connected by multiple connectors to transmit gas. This traditional structure has several drawbacks in practical use: ① The decentralized structure requires a large number of pipes and connectors, making the internal gas path layout appear cluttered and disorganized, and also occupying significant installation space. Many applications now require portable or compact spectrometers, and excessive pipes and connectors directly limit the optimization of instrument size, significantly hindering the overall miniaturization design. ② The connection points themselves are major risk points for gas leakage; each additional connector adds another potential leak point. The decentralized structure typically has a large number of connectors, naturally increasing the probability of gas leakage. A decrease in gas path sealing directly affects the stability of gas transmission, interfering with the normal operation of the spectrometer, leading to frequent fluctuations in detection data and making it difficult to guarantee consistent results. ③ This structure is also relatively cumbersome to install and maintain. During installation, the complex piping layout requires workers to connect each connection individually, which is not only time-consuming and labor-intensive, but also prone to problems such as incorrect pipe connections and loose joints. In later maintenance, due to the large number of joints and pipes, if a gas path malfunctions, maintenance personnel must check each connection point individually, increasing the workload and extending maintenance time, indirectly raising the overall maintenance cost of the instrument. Furthermore, spectrometers inevitably generate slight vibrations during operation, which are transmitted to exposed pipes, potentially causing joints to loosen over time. Loose joints further increase the risk of gas leaks and may even lead to more serious problems such as pipe detachment, significantly reducing the long-term reliability of the gas path system, affecting both the instrument's lifespan and the stability of continuous operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an integrated gas path assembly block. This block employs a unified structural design, integrating previously dispersed pipes and connectors onto a single substrate. Gas transmission is achieved through internally pre-set channels, thereby reducing the need for external pipes and connectors, compensating for the shortcomings of existing dispersed gas path systems, and meeting the gas path stability requirements of precision spectrometers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A gas path assembly block includes a cuboid metal substrate, wherein the metal substrate is formed into a pre-defined gas path channel through blind holes. Unlike existing technologies, this design... A first blind hole is drilled from the upper side of the metal substrate; A second blind hole, a third blind hole, a fourth blind hole, and a fifth blind hole are drilled from the lower side of the metal substrate, respectively. A sixth blind hole and a seventh blind hole are drilled from the left side of the metal substrate, and the sixth blind hole is in fluid communication with the second blind hole; An eighth blind hole is drilled from the right side of the metal substrate, and the eighth blind hole is in fluid communication with the fourth and fifth blind holes. Blind holes numbered 9, 10, 11, 12, 13, 14, 15, 16, and 17 are drilled from the top surface of the metal substrate. Among them, blind holes 9 and 10 are in fluid communication with blind hole 1; blind holes 11, 12, and 13 are in fluid communication with blind hole 7; blind hole 14 is in fluid communication with blind hole 2; blind hole 15 is in fluid communication with blind hole 3; and blind holes 16 and 17 are in fluid communication with blind hole 5.

[0006] Furthermore, the opening ends of the seventh blind hole, the second blind hole, the fourth blind hole, and the fifth blind hole are sealed with threaded plugs, and the threaded plugs are threaded into the inner wall of the blind holes.

[0007] Furthermore, the opening end of the third blind hole is detachably and sealingly connected to a quick-connect fitting; the opening ends of the sixth and eighth blind holes are respectively detachably and sealingly connected to rotary fittings.

[0008] Furthermore, the opening end of the sixteenth blind hole is detachably and sealingly connected to a pressure reducing valve, which is used to regulate the fluid pressure in the gas path.

[0009] Furthermore, the opening ends of the seventeenth blind hole and the tenth blind hole are respectively detachably and sealingly connected to pressure switches, which are used to monitor the fluid pressure in the gas path.

[0010] Furthermore, the opening ends of the ninth and eleventh blind holes are respectively detachably and sealingly connected to solenoid valves, which are used to control the on / off state of the air passage.

[0011] Furthermore, the opening ends of the thirteenth and fourteenth blind holes are detachably and sealingly connected to a flow meter; the opening ends of the twelfth and fifteenth blind holes are detachably and sealingly connected to another flow meter, which is used to detect the flow rate of fluid in the gas path.

[0012] Furthermore, the open end of the first blind hole remains open, serving as an exhaust passage for the solenoid valve.

[0013] Compared with existing technologies, this utility model adopts an integrated design, integrating scattered pipelines and connectors into a single metal substrate. By replacing traditional pipelines with blind holes, the number of connectors is significantly reduced, effectively lowering the risk of gas leakage. The rectangular metal substrate has a regular structure, significantly reducing the space occupied, which is more conducive to the miniaturization design of the spectrometer. In terms of sealing, a dual sealing structure combining threaded plug sealing and component sealing connection is adopted, and the blind holes have high processing precision, further improving the gas path sealing performance. All functional components are detachable, improving assembly efficiency and eliminating the need to disassemble the overall structure for later maintenance, thus reducing maintenance costs. In addition, the integrated structure can also avoid the problem of connector loosening caused by vibration in traditional pipelines, significantly extending the service life of the gas path system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 The front view; Figure 3 for Figure 2 Sectional view at point AA. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] like Figure 1-3The air passage assembly block shown includes a rectangular metal block 100. The metal block is preferably made of aluminum alloy or stainless steel, which has good mechanical strength and processing adaptability, and is easy to precisely process blind hole structures through CNC drilling process. A first blind hole 101 is drilled vertically from the upper side of the metal block 100. After drilling, the hole wall is deburred and polished to ensure smooth gas flow. A second blind hole 102, a third blind hole 103, a fourth blind hole 104, and a fifth blind hole 105 are drilled vertically from the lower side of the metal block 100. The four blind holes are evenly distributed along the length of the lower side, with the hole position deviation controlled within a preset accuracy range to ensure subsequent connection accuracy. A sixth blind hole 106 and a seventh blind hole 107 are drilled horizontally from the left side of the metal block 100. The inner end of the sixth blind hole 106 precisely connects with the middle area of ​​the second blind hole 102, forming a gas path between the left and lower sides. An eighth blind hole 108 is drilled horizontally from the right side of the metal block 100, extending internally to connect with both the fourth and fifth blind holes 104 and 105, completing the connection between the right and lower gas paths. The top surface is drilled vertically with the following blind holes: the ninth blind hole 109, the tenth blind hole 110, the eleventh blind hole 111, the twelfth blind hole 112, the thirteenth blind hole 113, the fourteenth blind hole 114, the fifteenth blind hole 115, the sixteenth blind hole 116, and the seventeenth blind hole 117. The lower end of each blind hole on the top surface is precisely connected to the corresponding inner blind hole: the ninth blind hole 109 and the tenth blind hole 110 are connected to the upper part of the first blind hole 101; the eleventh blind hole 111, the twelfth blind hole 112, and the thirteenth blind hole 113 are connected to the inner end of the seventh blind hole 107; the fourteenth blind hole 114 is connected to the upper part of the second blind hole 102; the fifteenth blind hole 115 is connected to the upper part of the third blind hole 103; and the sixteenth blind hole 116 and the seventeenth blind hole 117 are connected to the upper part of the fifth blind hole 105.

[0017] This embodiment uses a rectangular metal block as an integrated substrate. Seventeen blind holes are drilled at predetermined positions on its top, upper, lower, left, and right sides. These blind holes are precisely connected according to a predetermined relationship (i.e., the sixth blind hole is connected to the second blind hole, the eighth blind hole is connected to the fourth and fifth blind holes, the ninth and tenth blind holes are connected to the first blind hole, the eleventh, twelfth, and thirteenth blind holes are connected to the seventh blind hole, the fourteenth blind hole is connected to the second blind hole, the fifteenth blind hole is connected to the third blind hole, and the sixteenth and seventeenth blind holes are connected to the fifth blind hole). This creates an integrated gas path network inside the metal block, replacing traditional distributed pipelines. This enables directional transmission, diversion, and convergence of gas within the substrate, achieving the core function of integrated gas path.

[0018] During assembly, the opening ends of each blind hole are first cleaned to remove any remaining debris and burrs. For the opening ends of the seventh blind hole 107, the second blind hole 102, the fourth blind hole 104, and the fifth blind hole 105, threaded plugs 200 are used for sealing. The plugs are threaded into the inner wall of the blind holes, and sealant can be applied to the threaded connections to ensure the gas path is airtight and prevent gas leakage. A quick-connect fitting 300 is installed at the opening end of the third blind hole 103. This fitting uses a suitable sealing structure and can quickly connect to an external gas source pipeline, simplifying the installation process. Rotary joints 400 are installed at the opening ends of the sixth blind hole 106 and the eighth blind hole 108, respectively. The rotary joints are selected to be corrosion-resistant and resistant to slight vibrations, suitable for the operating scenarios of the spectrometer, ensuring the stability of the gas path connection.

[0019] In another preferred embodiment, the openings of the seventh blind hole 107, the second blind hole 102, the fourth blind hole 104, and the fifth blind hole 105 are sealed with plugs 200. These four blind holes are important components of the internal gas path channels of the gas path assembly block. Their openings do not require external functional components or pipelines. Sealing these openings with plugs 200 directly blocks the path of gas leakage from non-working ports, further enhancing the overall sealing of the gas path system. This avoids gas leakage problems caused by exposed or improperly sealed openings, ensuring the stability of gas transmission within the internal gas path channels and providing a reliable gas path foundation for accurate detection by the spectrometer.

[0020] In another preferred embodiment, the open end of the third blind hole 103 is connected to a quick-connect fitting 300, and the open ends of the sixth blind hole 106 and the eighth blind hole 108 are respectively connected to rotary fittings 400. The third blind hole 103 serves as the access channel for an external air source, and the quick-connect fitting 300 is designed to enable quick and convenient connection with the external air source pipeline, allowing assembly to be completed without complex operations, significantly improving installation efficiency. The sixth blind hole 106 and the eighth blind hole 108 serve as the connection channels between the air circuit and related external components, and the rotary fittings 400 can accommodate the slight rotation requirements of the components during operation, preventing the pipeline from being pulled or loosened due to torsion, while ensuring the sealing performance of the connection. This simplifies the external connection structure and improves the stability and adaptability of the air circuit connection.

[0021] In another preferred embodiment, the open end of the sixteenth blind port 116 is connected to a pressure reducing valve 500. The sixteenth blind port 116 communicates with the fifth blind port 105 and belongs to the pressure regulation branch of the gas path system. The connection of the pressure reducing valve 500 can flexibly adjust the gas pressure in the corresponding gas path according to the different gas pressure requirements of different detection scenarios of the spectrometer, stabilize the pressure within a reasonable range suitable for the operation of the instrument, avoid deviations in detection data due to excessively high or low gas pressure, and prevent damage to internal components of the instrument caused by abnormal pressure, thus ensuring the detection accuracy and service life of the spectrometer.

[0022] In another preferred embodiment, the open ends of the seventeenth blind hole 117 and the tenth blind hole 110 are connected to the pressure switch 600. The seventeenth blind hole 117 communicates with the fifth blind hole 105, and the tenth blind hole 110 communicates with the first blind hole 101. The two correspond to different branches in the gas circuit system. The pressure switch 600 can monitor the gas pressure status of its branch in real time. When abnormal conditions such as overpressure or underpressure occur, it can promptly send a feedback signal, which facilitates timely troubleshooting by staff, or can cooperate with the instrument control system to achieve automatic protection, avoiding gas circuit leakage, component damage and other failures caused by abnormal pressure, thereby improving the operational safety and reliability of the gas circuit system.

[0023] In another preferred embodiment, the open ends of the ninth blind hole 109 and the eleventh blind hole 111 are connected to the solenoid valve 700. The ninth blind hole 109 communicates with the first blind hole 101, and the eleventh blind hole 111 communicates with the seventh blind hole 107. Both are key on / off nodes in the gas path system. The connection of the solenoid valve 700 enables precise control of the gas transmission in the corresponding branch. According to the detection process requirements of the spectrometer, the on / off state of the gas path can be quickly switched to ensure that the gas is accurately delivered to the target area at the required time, avoiding gas waste. At the same time, it improves the continuity and automation of the detection process and adapts to the precise working rhythm of the spectrometer.

[0024] In another preferred embodiment, the opening ends of the thirteenth blind hole 113 and the fourteenth blind hole 114, and the opening ends of the twelfth blind hole 112 and the fifteenth blind hole 115 are respectively connected to a flow meter 800. The thirteenth blind hole 113 communicates with the seventh blind hole 107, the fourteenth blind hole 114 communicates with the second blind hole 102, the twelfth blind hole 112 communicates with the seventh blind hole 107, and the fifteenth blind hole 115 communicates with the third blind hole 103. The two sets of blind holes correspond to different branch flows in the gas path system. The flow meter 800 can detect the gas flow in each branch in real time, intuitively feedback the flow data, and facilitate the staff to adjust the flow parameters according to the detection needs, ensuring that the gas supply in each branch is stable and meets the requirements, avoiding fluctuations in the detection results due to uneven flow, and further improving the accuracy and consistency of the spectrometer detection data.

[0025] In another preferred embodiment, the open end of the first blind hole 101 is open, serving as the exhaust port of the solenoid valve 700. The first blind hole 101 communicates with the ninth blind hole 109 and the tenth blind hole 110, and is a general exhaust channel of the gas path system. By setting its open end as the exhaust port of the solenoid valve 700, excess gas or gas to be discharged generated during the operation of the solenoid valve can be discharged in a timely manner, avoiding gas accumulation inside the gas path that would lead to pressure rise, preventing pressure overload from affecting the gas path sealing and normal operation of components, and ensuring the internal pressure balance of the gas path system, providing favorable conditions for stable gas transmission, and indirectly improving the working stability of the spectrometer.

[0026] The selection of each component of this utility model can be adjusted according to the actual application scenario. For example, the metal substrate can be made of stainless steel to adapt to corrosive gas environments, and the parameters of components such as pressure reducing valves and flow meters can be optimized according to the specific gas path requirements of the spectrometer. However, their core structure and connection relationship all fall within the protection scope of this utility model.

Claims

1. A gas path assembly block, comprising a cuboid metal substrate (100), wherein the metal substrate (100) is formed into a predetermined gas path channel by blind hole processing, characterized in that, A first blind hole (101) is drilled from the upper side of the metal substrate (100). A second blind hole (102), a third blind hole (103), a fourth blind hole (104) and a fifth blind hole (105) are drilled from the lower side of the metal substrate (100). A sixth blind hole (106) and a seventh blind hole (107) are drilled from the left side of the metal substrate (100), wherein the sixth blind hole (106) is in fluid communication with the second blind hole (102); An eighth blind hole (108) is drilled from the right side of the metal substrate (100), and the eighth blind hole (108) is in fluid communication with the fourth blind hole (104) and the fifth blind hole (105); A ninth blind hole (109), a tenth blind hole (110), an eleventh blind hole (111), a twelfth blind hole (112), a thirteenth blind hole (113), a fourteenth blind hole (114), a fifteenth blind hole (115), a sixteenth blind hole (116), and a seventeenth blind hole (117) are drilled from the top surface of the metal substrate (100). Among them, the ninth blind hole (109) and the tenth blind hole (110) are fluidly connected to the first blind hole (101); the eleventh blind hole (111), the twelfth blind hole (112), and the thirteenth blind hole (113) are fluidly connected to the seventh blind hole (107); the fourteenth blind hole (114) is fluidly connected to the second blind hole (102); the fifteenth blind hole (115) is fluidly connected to the third blind hole (103); and the sixteenth blind hole (116) and the seventeenth blind hole (117) are fluidly connected to the fifth blind hole (105).

2. The gas path assembly block according to claim 1, characterized in that, The opening ends of the seventh blind hole (107), the second blind hole (102), the fourth blind hole (104) and the fifth blind hole (105) are sealed by a plug (200), and the plug (200) is threaded to the inner wall of the blind hole.

3. The gas path assembly block according to claim 1, characterized in that, The opening end of the third blind hole (103) is detachably and sealingly connected to a quick-connect fitting (300); the opening ends of the sixth blind hole (106) and the eighth blind hole (108) are respectively detachably and sealingly connected to a rotary fitting (400).

4. The gas path assembly block according to claim 1, characterized in that, The opening end of the sixteenth blind hole (116) is detachably and sealingly connected to a pressure reducing valve (500), which is used to regulate the fluid pressure in the gas path.

5. The gas path assembly block according to claim 1, characterized in that, The opening ends of the seventeenth blind hole (117) and the tenth blind hole (110) are respectively detachably and sealed to a pressure switch (600), which is used to monitor the fluid pressure in the gas path.

6. The gas path assembly block according to claim 1, characterized in that, The opening ends of the ninth blind hole (109) and the eleventh blind hole (111) are respectively detachably and sealingly connected to a solenoid valve (700), which is used to control the opening and closing of the air passage.

7. The gas path assembly block according to claim 1, characterized in that, The opening ends of the thirteenth blind hole (113) and the fourteenth blind hole (114) are detachably and sealed to a flow meter (800); the opening ends of the twelfth blind hole (112) and the fifteenth blind hole (115) are detachably and sealed to another flow meter (800), which is used to detect the flow rate of fluid in the gas path.

8. The gas path assembly block according to claim 1, characterized in that, The opening end of the first blind hole (101) remains open, serving as the exhaust passage for the solenoid valve (700).

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