CN219475473U

CN219475473U - FID detector

Info

Publication number: CN219475473U
Application number: CN202320774231.2U
Authority: CN
Inventors: 杨骏文; 吴凯勋; 郝凯瑞; 黄舒雅; 邱天; 赵闻; 孙圣举; 于成龙; 马越; 王长嵩
Original assignee: Tianjin Jinpuli Environmental Protection Technology Co ltd
Current assignee: Tianjin Jinpuli Environmental Protection Technology Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-08-04
Anticipated expiration: 2033-04-10

Abstract

The utility model discloses an FID detector, and belongs to the technical field of detectors. Including the casing subassembly, the inside interval of casing subassembly is provided with nozzle and collector, and nozzle and some casing subassemblies form the hybrid chamber, and collector, nozzle and another some casing subassemblies form the combustion chamber, and first mounting hole has been seted up to the casing subassembly lateral wall, and first mounting hole and combustion chamber intercommunication can alternatively be equipped with polarization subassembly and shutoff piece on the casing subassembly, and polarization subassembly includes polarization electric fork, and inside part polarization electric fork worn to locate first mounting hole and with nozzle butt, shutoff piece can shutoff first mounting hole. By adopting the mode, the two types of detectors share one set of knot member, so that the number of parts is reduced, the production cost and the production time of manufacturers are reduced, and the manpower and material resources of the manufacturers are saved; on the other hand, the condition that two sets of knot components are stored and managed respectively can be avoided, and the work is convenient.

Description

FID detector

Technical Field

The utility model relates to the technical field of detectors, in particular to an FID detector.

Background

FID (flame ionization detector) detectors are widely used for the detection of volatile hydrocarbons and carbon-containing compounds. The FID detector mainly uses hydrogen flame (flame generated by burning hydrogen and air) as energy, when organic matters enter the flame, chemical ionization occurs at high temperature, and the number of ions generated after ionization is far more than that of base flow (ions generated by burning hydrogen). The generated ions directionally move under the action of a high-voltage electric field to form ion flow, the ion flow is amplified by high resistance to generate an electric signal, the generated electric signal is in direct proportion to the amount of organic compounds entering flame combustion, and then quantitative analysis can be carried out according to the electric signal, so that a detection result is obtained.

In the prior art, FID detectors are mainly in two forms. One is the form of the monopole FID detector, the FID detector of this form is simple in overall structure, use the small number of structural parts, save the cost, save the space, but its circuit part requires higher; the other type is a bipolar FID detector, and the overall structure of the FID detector is complex, the number of structural parts is large, the cost is high, and the circuit design is simple.

In the actual detection process, when the detection personnel respectively use two types of detectors, two sets of knot members are needed to be used. In the process of using the two sets of knot components, on one hand, manufacturers are required to process the two sets of knot components respectively, the production cost is high, and the production process is time-consuming and labor-consuming; on the other hand, when two sets of knot members are provided at the same time, the number of parts is large, and management is inconvenient.

Disclosure of Invention

The utility model aims to provide an FID detector, which can enable a single-stage FID detector and a bipolar FID detector to share a set of junction components, thereby reducing the production cost of manufacturers and simultaneously facilitating the management work of parts.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a FID detector, includes the casing subassembly, be formed with hybrid chamber and combustion chamber in the casing subassembly, the inside interval of casing subassembly is provided with nozzle and collector, the entry end of nozzle with hybrid chamber intercommunication, the exit end of nozzle with the one end intercommunication of combustion chamber, the collector is located the other end of combustion chamber, its characterized in that, first mounting hole has been seted up to the casing subassembly lateral wall, first mounting hole with combustion chamber intercommunication, first mounting hole department can alternatively be installed and be equipped with polarization subassembly or shutoff piece, first mounting hole department is installed when polarization subassembly, polarization subassembly includes polarization electric fork, part polarization electric fork wear to locate inside the first mounting hole and with nozzle butt, when first mounting hole department installs the shutoff piece, the shutoff piece can the shutoff of first mounting hole.

Preferably, the FID detector further includes a connector connected to the housing assembly, where the connector is inserted in the first mounting hole and at least part of the connector extends out of the housing assembly, and the connector is provided with a first through hole, where the first through hole, the first mounting hole and the combustion chamber are mutually communicated, and the connector is used to connect the polarization assembly or the plugging member.

Preferably, the polarization assembly further comprises:

the insulating piece is provided with a second through hole, and one end of the polarized electric fork, which is far away from the nozzle, penetrates through the second through hole;

and the locking piece is used for connecting the insulating piece to the connecting piece and connecting the polarized electric fork to the insulating piece.

Preferably, the locking member comprises a first locking nut connected to the polarized electric fork, a first positioning part is convexly arranged on the periphery of the middle position of the polarized electric fork, and the first locking nut and the first positioning part are respectively abutted to two ends of the insulating member.

Preferably, a second positioning part is convexly arranged at the periphery of the middle part of the insulating piece, and one end of the insulating piece stretches into the first through hole; the locking piece further comprises a second locking nut, the second locking nut is provided with a stepped hole, the second locking nut is sequentially sleeved on the connecting piece, the second positioning portion and the insulating piece, the second locking nut is connected with the connecting piece, and the second positioning portion is clamped between the connecting piece and the second locking nut.

Preferably, one end of the connecting piece is fixedly inserted into the first mounting hole.

Preferably, the blocking member includes a connection portion connected to an outer periphery of the connection member and a sealing portion blocking the first through hole.

Preferably, the housing assembly includes:

the first shell is internally provided with a first channel in a penetrating way, part of the nozzle is arranged at one end of the first shell, which is close to the collector, and seals the first channel, and the nozzle and the side wall of the first channel form the mixing cavity;

the second shell is connected to the first shell, a second channel is formed in the second shell in a penetrating mode, the second channel is located at one end of the first channel, the collector and the other part of the nozzles are located at two ends of the second channel respectively, and the second channel is sealed to form the combustion cavity.

Preferably, the nozzle comprises a first conductive part, an insulating part and a second conductive part which are sequentially arranged, wherein the first conductive part faces the mixing cavity, and the second conductive part faces the combustion cavity and is abutted with the polarized electric fork.

Preferably, when the plugging piece is installed at the first installation hole, the nozzle is a metal nozzle, and the nozzle is matched with the plugging piece for use.

The utility model has the beneficial effects that:

the polarization component or the blocking piece is connected to the shell component, so that the effect that the two types of detectors can share one set of knot components is achieved. When a detector needs to use the single-stage FID detector, the detector installs a blocking piece on the first mounting hole, so that the first mounting hole is blocked to form the single-stage FID detector, and then detection work is carried out; when a detector needs to use the bipolar FID detector, the detector installs a polarization component on the first installation hole to form the bipolar FID detector, and then performs detection work. By adopting the mode, the two types of detectors share one set of knot members, so that the number of parts is reduced, on one hand, the situation that the two types of detectors use the two sets of knot members can be avoided, and the number of parts produced by a manufacturer is reduced, thereby reducing the production cost and the production time of the manufacturer and saving the manpower and material resources of the manufacturer; on the other hand, the condition that two sets of knot components are respectively stored and managed can be avoided, the number of parts needing to be stored and managed is reduced, and the work is facilitated.

Drawings

FIG. 1 is an isometric view of a FID detector according to the present utility model in a bipolar state;

FIG. 2 is an isometric view of a FID detector according to the present utility model in a monopolar condition;

FIG. 3 is a cross-sectional view of a FID detector according to the present utility model in a monopolar condition;

FIG. 4 is an exploded view of a FID detector according to the present utility model in a bipolar state;

FIG. 5 is a cross-sectional view of a FID detector according to the present utility model in a bipolar state;

fig. 6 is a partial enlarged view of a portion a in fig. 5.

In the figure:

1. a housing assembly; 2. a first housing; 201. a first channel; 202. a first air inlet pipe; 203. a mixing chamber; 3. a nozzle; 301. a first conductive portion; 302. an insulating part; 303. a second conductive portion; 4. a second housing; 401. a second channel; 402. a collector; 403. a combustion chamber; 404. a second air inlet pipe; 405. a first mounting hole; 5. a connecting piece; 501. a first through hole; 6. a blocking member; 61. a connection part; 62. a sealing part; 7. a polarizing component; 701. polarizing the electric fork; 7011. a first positioning portion; 702. an insulating member; 7021. a second through hole; 7022. a second positioning portion; 703. a locking member; 7031. a first lock nut; 7032. a second lock nut; 8. a heating body; 801. a second mounting hole; 802. and a third mounting hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, either fixed or removable; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 6, the present utility model provides an FID detector that enables a single-stage FID detector and a bipolar FID detector to share a set of junction members, thereby reducing the production cost of manufacturers and facilitating the management of components.

Referring to fig. 1, 2 and 3 specifically, the FID detector comprises a housing assembly 1, a mixing cavity 203 and a combustion cavity 403 are formed in the housing assembly 1, a nozzle 3 and a collector 402 are arranged in the housing assembly 1 at intervals, an inlet end of the nozzle 3 is communicated with the mixing cavity 203, an outlet end of the nozzle 3 is communicated with one end of the combustion cavity 403, and the collector 402 is located at the other end of the combustion cavity 403. The side wall of the shell component 1 is provided with a first mounting hole 405, the first mounting hole 405 is communicated with the combustion chamber 403, and the first mounting hole 405 is provided with a polarization component 7 or a plugging piece 6 alternatively. Referring to fig. 1, when the polarization assembly 7 is mounted on the first mounting hole 405, the polarization assembly 7 closes the first mounting hole 405 to form a bipolar FID detector. Referring to fig. 2, when the blocking member 6 is mounted on the first mounting hole 405, the blocking member 6 closes the first mounting hole 405, forming a single stage FID detector.

The structure differs for both forms of FID detector in that the first mounting hole 405 is a different structure for mounting the closure member 6 or the polarizing assembly 7 and the nozzle 3, the remaining structure being common. In such a way, the polarization component 7 and the plugging piece 6 are alternatively installed at the first installation hole 405 to form FID detectors in different forms, so that the types and the number of parts can be reduced, on one hand, when the parts are produced by a manufacturer, the production of repeated parts can be avoided, the production cost of the manufacturer is reduced, the manpower and material resources during production are reduced, and the time is saved; on the other hand, when the operators store and manage the parts, the workload can be reduced, and the operators can work conveniently.

Referring to fig. 3 and 4, the housing assembly 1 includes a first housing 2 and a second housing 4. The first housing 2 is internally perforated with a first passage 201 in the height direction thereof. The nozzle 3 is disposed at an end of the first housing 2 near the collector 402. The nozzle 3 and the side wall of the first channel 201 form a mixing cavity 203, the lower part of the nozzle 3 is positioned inside the mixing cavity 203, the side wall of the first shell 2 is connected with a first air inlet pipe 202, and the first air inlet pipe 202 is communicated with the mixing cavity 203. In this way, the bottom of the mixing chamber 203 has the lower port of the first channel 201 for communicating the gas to be detected, the first air inlet pipe 202 is for feeding hydrogen, and the gas to be detected and the hydrogen are mixed in the mixing chamber 203 and then enter the combustion chamber 403 through the nozzle 3.

Referring to fig. 2 and 3, the second housing 4 is disposed above the first housing 2, and a second passage 401 is formed inside the second housing 4 in a height direction thereof. The lower end of the second channel 401 is connected to the nozzle 3, and the upper port of the second channel 401 is connected to the collector 402. The nozzle 3, the second channel 401 side wall and the collector 402 form a combustion chamber 403, the upper part of the nozzle 3 being located inside the combustion chamber 403. In this way, the mixed gas in the mixing chamber 203 enters the combustion chamber 403 through the nozzle 3, and is ignited by the ignition part, and ions generated by the combustion are directionally moved under the action of the collector 402, so as to form an electric signal, and an operator carries out the next processing on the electric signal to obtain a detection result. A first mounting hole 405 is formed in a side wall of the second housing 4 and communicates with the combustion chamber 403, the first mounting hole 405 being used to mount the polarization assembly 7 or the blocking member 6 to accommodate two different types of FID detectors.

Alternatively, referring to fig. 3 and 4, the second housing 4 is connected with the connection member 5, a portion of the connection member 5 is located inside the first mounting hole 405, and a portion of the connection member 5 is located outside the first mounting hole 405. The connecting member 5 is provided with a first through hole 501, and the first through hole 501, the first mounting hole 405 and the combustion chamber 403 are communicated with each other. The connecting piece 5 is provided with a polarization component 7 or a plugging piece 6. The outer end of the first mounting hole 405 extends outwards to the outer end of the first through hole 501 by the arrangement of the connecting piece 5, so that an operator can conveniently connect the polarization assembly 7 or the blocking piece 6 to the connecting piece 5 to realize connection of the polarization assembly 7 or the blocking piece 6 and the first mounting hole 405.

In one embodiment, an end of the connecting member 5 near the first mounting hole 405 is fixedly connected to the outer periphery of the second housing 4, or is connected to pass through and fixedly connected to the first mounting hole 405, and further, the connecting member 5 is welded to the second housing 4. Alternatively, the connection 5 may be a detachable connection, for example a threaded connection, with the second housing 4. The connection mode of the connecting piece 5 and the second housing 4 is not limited in this application, and is selected by a person skilled in the art according to own needs.

Referring to fig. 3, a single stage FID detector is formed when the closure member 6 is mounted on the connector member 5. The blocking member 6 includes a connection portion 61 and a sealing portion 62, the connection portion 61 being connected to the periphery of the connection member 5, the sealing portion 62 blocking the first through hole 501. When the blocking member 6 is mounted on the connection member 5, the nozzle 3 is a metal nozzle 3.

Alternatively, the connection portion 61 may be fixedly connected to the outer periphery of the connection member 5, such as by welding, or may be detachably connected, such as by screwing. The connection manner between the connection portion 61 and the connection member 5 is not limited in this application, and is selected by a person skilled in the art according to his own needs.

Referring to fig. 1 and 4, when the polarization assembly 7 is mounted on the connector 5, a bipolar FID detector is formed. Polarizing assembly 7 includes polarizing electrical fork 701, insulator 702, and locking member 703. Referring to fig. 4, 5 and 6, when the polarization assembly 7 is mounted on the connector 5, one end of the polarization electrical fork 701, which is close to the nozzle 3, is inserted into the first mounting hole 405 and abuts against the nozzle 3. The insulating member 702 is provided with a second through hole 7021, and one end of the polarized electric fork 701, which is far away from the nozzle 3, is penetrated through the second through hole 7021.

During installation, the locking member 703 can connect the polarized electrical fork 701 to the insulator 702 on the one hand and the insulator 702 to the connector 5 on the other hand. The locking connection manner between the polarization electrical fork 701 and the insulating member 702, and the locking connection manner between the insulating member 702 and the connecting member 5 are not limited in this application, and are selected by a person skilled in the art according to their own needs.

For example, referring to fig. 4 and 6, locking member 703 includes a first locking nut 7031, first locking nut 7031 being threadably coupled to a sidewall of polarized electrical fork 701 that passes through second throughbore 7021; the side wall of the middle part of the polarization fork 701 is convexly provided with a first positioning part 7011, and the first positioning part 7011 and the first lock nut 7031 are respectively abutted against two ends of the insulating piece 702.

During installation, an operator inserts one end of the polarized electric fork 701 into the second through hole 7021, so that the first positioning portion 7011 abuts against the end wall of the insulator 702, at this time, one end of the polarized electric fork 701 inserted into the second through hole 7021 extends to the outside of the second through hole 7021, and then the operator connects the second lock nut 7032 to the polarized electric fork 701 in a threaded manner, so that the second lock nut 7032 abuts against the other end wall of the insulator 702, and connection between the polarized electric fork 701 and the insulator 702 is achieved.

For example, referring to fig. 4 and 6, the sidewall of the middle portion of the insulating member 702 is convexly provided with a second positioning portion 7022, and one end of the insulating member 702 protrudes into the first through hole 501. The locking member 703 further includes a second locking nut 7032, the second locking nut 7032 is provided with a stepped hole, the second locking nut 7032 is sequentially sleeved on the connecting member 5, the second positioning portion 7022 and the insulating member 702, the second locking nut 7032 is connected with the connecting member 5, and the second positioning portion 7022 is clamped between the connecting member 5 and the second locking nut 7032.

Also, the connection manner between the second locking nut 7032 and the connecting piece 5 is not limited in this application, and may be selected by a person skilled in the art according to his own needs, and may be fixed connection or detachable connection.

Referring to fig. 4 and 6, when the polarization assembly 7 is mounted on the first mounting hole 405, the nozzle 3 includes a first conductive portion 301, an insulating portion 302, and a second conductive portion 303 sequentially disposed from bottom to top, wherein the first conductive portion 301 and the second conductive portion 303 are made of metal, and the insulating portion 302 is made of ceramic. The second guide portion abuts against the polarization fork 701.

It should be noted that the nozzle 3 of the bipolar FID detector is a nozzle 3 with an insulation 302, and that such a nozzle 3 can be applied to a single stage FID detector instead of a metal nozzle 3.

Optionally, referring to fig. 1 and 3, a heating body 8 is provided around the housing assembly 1, the heating body 8 being located at the junction of the first housing 2 and the second housing 4. A second mounting hole 801 is formed in the heating body 8, and a heating source, such as a heating rod, can be arranged in the second mounting hole 801 to raise the temperature of the mixed gas in the mixing chamber 203 and the combustion chamber 403 and raise the ignition probability of the mixed gas.

Referring to fig. 1 and 3, a third mounting hole 802 may be further formed in the heating body 8, and a temperature monitoring device may be disposed in the third mounting hole 802 to monitor the efficiency of the heating source in the heating body 8, so that an operator can replace the heating source in time.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a FID detector, includes casing subassembly (1), be formed with hybrid chamber (203) and combustion chamber (403) in casing subassembly (1), casing subassembly (1) inside interval is provided with nozzle (3) and collector (402), the entry end of nozzle (3) with hybrid chamber (203) intercommunication, the exit end of nozzle (3) with the one end intercommunication of combustion chamber (403), collector (402) are located the other end of combustion chamber (403), a serial communication port, first mounting hole (405) have been seted up to casing subassembly (1) lateral wall, first mounting hole (405) with combustion chamber (403) intercommunication, first mounting hole (405) department can alternatively install polarizing component (7) or shutoff piece (6), first mounting hole (405) department is installed when polarizing component (7), polarizing component (7) include polarizing electrical fork (701), part polarizing electrical fork (701) wear to locate first mounting hole (405) and nozzle (3) can install when shutoff piece (6) one side wall is installed to shutoff piece (405).

2. The FID detector according to claim 1, further comprising a connector (5), said connector (5) being inserted in said first mounting hole (405) and extending at least partially out of said housing assembly (1), said connector (5) being provided with a first through hole (501), said first mounting hole (405) and said combustion chamber (403) being in communication with each other, said connector (5) being adapted to connect said polarizing assembly (7) or said blocking member (6).

3. FID detector according to claim 2, characterized in that said polarization assembly (7) further comprises:

the insulation piece (702), a second through hole (7021) is formed in the insulation piece (702), and one end, far away from the nozzle (3), of the polarized electric fork (701) penetrates through the second through hole (7021);

and a locking member (703) for connecting the insulating member (702) to the connecting member (5) and connecting the polarized electrical fork (701) to the insulating member (702).

4. The FID detector according to claim 3, wherein said locking member (703) comprises a first locking nut (7031) connected to said polarization fork (701), a first positioning portion (7011) is protruding from the periphery of the middle portion of said polarization fork (701), and said first locking nut (7031) and said first positioning portion (7011) are respectively abutted to two ends of said insulating member (702).

5. The FID detector according to claim 3, wherein a second positioning portion (7022) is provided protruding from the outer periphery of the middle portion of said insulating member (702), and one end of said insulating member (702) extends into said first through hole (501); the locking piece (703) further comprises a second locking nut (7032), the second locking nut (7032) is provided with a stepped hole, the second locking nut (7032) is sequentially sleeved on the connecting piece (5), the second positioning portion (7022) and the insulating piece (702), the second locking nut (7032) is connected with the connecting piece (5), and the second positioning portion (7022) is clamped between the connecting piece (5) and the second locking nut (7032).

6. The FID detector according to claim 2, wherein said connector (5) is fixedly inserted at one end into said first mounting hole (405).

7. The FID detector according to claim 2, characterized in that the blocking piece (6) comprises a connecting portion (61) and a sealing portion (62), the connecting portion (61) being connected with the outer periphery of the connecting piece (5), the sealing portion (62) blocking the first through hole (501).

8. The FID detector according to any of the claims 1-7, wherein said housing assembly (1) comprises:

a first housing (2) with a first channel (201) penetrating through the first housing, wherein a part of the nozzle (3) is arranged at one end of the first housing (2) close to the collector (402) and seals the first channel (201), and the nozzle (3) and the side wall of the first channel (201) form the mixing cavity (203);

the second shell (4) is connected to the first shell (2), a second channel (401) is formed in the second shell (4) in a penetrating mode, the second channel (401) is located at one end of the first channel (201), the collector (402) and the other part of the nozzles (3) are located at two ends of the second channel (401) respectively, and the second channel (401) is sealed to form the combustion cavity (403).

9. The FID detector according to any of claims 1-7, wherein said nozzle (3) comprises a first conductive part (301), an insulating part (302) and a second conductive part (303) arranged in sequence, said first conductive part (301) facing said mixing chamber (203), said second conductive part (303) facing said combustion chamber (403) and abutting said polarization fork (701).

10. The FID detector according to any of claims 1-7, wherein said nozzle (3) is a metal nozzle when said blocking piece (6) is mounted at said first mounting hole (405), said nozzle (3) being used in cooperation with said blocking piece (6).