White pool

Abstract

The utility model discloses a White cell which comprises a cell body, a cell body cover plate, a first reflecting mirror, a second reflecting mirror, a third reflecting mirror, an incident window sheet, an emergent window sheet, an incident mirror assembly and an emergent mirror assembly, a mounting hole I and a mounting hole II corresponding to the second reflector and the third reflector are formed in the tank body wall at one end of the tank body, and the angles and positions of the mounting hole I and the mounting hole II meet the requirement of multiple reflection of light beams; the second reflector and the third reflector are respectively mounted in the mounting hole I and the mounting hole II, the first reflector is fixed at the other end in the pool body, and an incident light beam opening and an emergent light beam opening are formed in the pool body wall at the end where the first reflector is located according to the light beam trend and are respectively used for mounting an incident window sheet and an emergent window sheet; an incident mirror assembly and an emergent mirror assembly are correspondingly arranged on the outer sides of the incident window sheet and the emergent window sheet and are used for changing incident and emergent light beams to be horizontal and vertical to the central axis direction of the White cell; and the tank body cover plate seals the upper end of the tank body. According to the utility model, the lens mounting and fixing mode is simplified, and the air chamber can be conveniently matched with the infrared spectrometer.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas detection technical field, specifically relates to a white cell. BACKGROUND

[0002] Infrared spectrometer is matched with long optical path gas chamber and can monitor a plurality of trace gases, and is widely applied to a plurality of gas monitoring scenes such as closed space, air quality, tail gas emission.

[0003] The infrared spectrometer for trace gas detection usually works in the middle infrared waveband and is space light, so the long optical path gas chamber is suitable to use white cell structure, and the gas chamber structure is composed of three concave mirror pieces with same focal length, the three mirror pieces are fixed according to certain spatial position and angle according to light reflection theory, so that light can be reflected multiple times between the mirror pieces, and the purpose of increasing the optical path is achieved.

[0004] The prior art usually adopts a jackscrew to fix the mirror piece, adjusts the deflection angle of the mirror piece through the jackscrew, and is complicated to install and adjust, and the incident and emergent beam angles of the white cell are indefinite, so it is inconvenient to be used in combination with the infrared spectrometer. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a white cell, simplifies the mirror piece installation and fixing mode, and is convenient for the gas chamber to be applied in combination with the infrared spectrometer.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A white cell includes a cell body, a cell body cover plate, a first mirror, a second mirror, a third mirror, an incident window piece, an emergent window piece, an incident mirror assembly and an emergent mirror assembly.

[0008] One end of the cell body is provided with mounting holes I and II corresponding to the second mirror and the third mirror on the cell body wall, the angles and positions of the mounting holes I and II meet the multiple reflection requirements of the light beam, the second mirror and the third mirror are respectively installed in the mounting holes I and II, the first mirror is fixed at the other end in the cell body, the cell body wall at the end where the first mirror is located is provided with an incident light beam port and an emergent light beam port according to the direction of the light beam, and the incident window piece and the emergent window piece are respectively installed, the incident mirror assembly and the emergent mirror assembly are respectively arranged on the outer sides of the incident window piece and the emergent window piece, and are used to change the incident light beam and the emergent light beam into horizontal directions perpendicular to the central axis of the white cell, and the cell body cover plate seals the upper end of the cell body.

[0009] Further, gas holes are formed in the two sides of the cell body cover plate, and the gas holes can be connected with a sampling light path to extract the gas to be measured.

[0010] Further, the second mirror is installed through a second mirror fixing plate and a sealing ring I, the second mirror fixing plate is fixed in the mounting hole I, the sealing ring mounting groove I is arranged in the mounting hole I, the sealing ring I is arranged in the sealing ring mounting groove I and the second mirror is press-fitted on the second mirror fixing plate, and the second mirror fixing plate faces the outside of the pool body.

[0011] The third mirror is installed through a third mirror fixing plate and a sealing ring II, the third mirror fixing plate is fixed in the mounting hole II, the sealing ring mounting groove II is arranged in the mounting hole II, the sealing ring II is arranged in the sealing ring mounting groove II and the third mirror is press-fitted on the third mirror fixing plate, and the third mirror fixing plate faces the outside of the pool body.

[0012] Further, the first mirror is in the shape of a convex character, the first mirror mounting groove is arranged in the bottom of the pool body, the first mirror is arranged in the first mirror mounting groove, and the first mirror is clamped and fixed through the stand columns protruding from the inner wall of the pool body at both ends of the first mirror; the upper surface of the first mirror is press-fitted and fixed through the first mirror fixing plate, and the first mirror fixing plate is fixed with the stand columns at both ends of the first mirror.

[0013] Further, the incident window sheet and the exit window sheet are fixed through annular fixing plates and sealing rings, the two annular fixing plates are fixed in the incident light beam port and the exit light beam port of the pool body respectively and face the outside of the pool body, and the two sealing rings are fixed in the inner sides of the incident window sheet and the exit window sheet and press the incident window sheet and the exit window sheet on the annular fixing plates.

[0014] Further, the incident mirror assembly comprises an incident mirror frame, an incident mirror, an O-shaped gasket I and an incident mirror fixing plate, the mounting hole III is arranged on the incident mirror frame, the incident mirror fixing plate is fixed in the mounting hole III, and the O-shaped gasket I press-fits the incident mirror on the incident mirror fixing plate.

[0015] The exit mirror assembly comprises an exit mirror frame, an exit mirror, an O-shaped gasket II and an exit mirror fixing plate, the mounting hole IV is arranged on the exit mirror frame, the exit mirror fixing plate is fixed in the mounting hole IV, and the O-shaped gasket II press-fits the exit mirror on the exit mirror fixing plate.

[0016] Further, the inner sides of the incident mirror fixing plate and the exit mirror fixing plate are each provided with an annular boss.

[0017] Beneficial effects:

[0018] 1. The utility model discloses a mounting hole I, mounting hole II that angle and position satisfy the installation of the multiple reflection of light beam on the pool body wall, directly install the second mirror, third mirror into no longer need to adjust the mirror angle and position, simple assembly, simplify the lens installation fixed mode, secondly, the utility model discloses a light beam straight line in and out and has certain condensing effect through the incidence mirror subassembly, outgoing mirror subassembly, and the infrared spectrometer application is convenient for air chamber cooperation.

[0019] 2. The utility model discloses that the pool body cover plate is opened with the air hole on both sides, and it is convenient to connect the sampling light path and extract the measured gas.

[0020] 3. The utility model discloses incidence mirror subassembly, outgoing mirror subassembly utilize fixed plate and washer fixed lens, and the fixed assembly structure is simple, and it is convenient to assemble.

[0021] 4. The utility model discloses that the inside surface of incidence mirror fixed plate and outgoing mirror fixed plate all is equipped with annular boss, and it is convenient to position and the weight is lighter under the condition of same thickness. DRAWINGS

[0022] Figure 1 It is the whole structure schematic diagram of the utility model.

[0023] Figure 2 It is the explosion view of the utility model.

[0024] Among them, 1-sealing ring I, 2-second mirror, 3-second mirror fixed plate, 4-third mirror fixed plate, 5-third mirror, 6-sealing ring II, 7-pool body, 8-sealing ring III, 9-incidence window piece, 10-incidence annular fixed plate, 11-incidence mirror frame, 12-O washer I, 13-incidence mirror, 14-incidence mirror fixed plate, 15-outgoing annular fixed plate, 16-outgoing window piece, 17-sealing ring IV, 18-outgoing mirror fixed plate, 19-outgoing mirror, 20-O washer II, 21-outgoing mirror frame, 22-first mirror, 23-first mirror fixed plate, 24-pool body cover plate, 25-pool body sealing ring. SPECIFIC IMPLEMENTATION

[0025] The utility model is described in detail below in combination with the drawings and examples.

[0026] The utility model provides a white pool, including pool body 7, pool body cover plate 24, first mirror 22, second mirror 2, third mirror 5, incidence window piece 9, outgoing window piece 16, incidence mirror subassembly and outgoing mirror subassembly.

[0027] As Figure 1 , Figure 2As shown, the pool body 7 one end pool body wall is equipped with the second mirror 2, the third mirror 5 corresponding mounting hole I, mounting hole II, the angle and position of mounting hole I, mounting hole II meet the multiple reflection requirements of light beam;Second mirror 2, the third mirror 5 are installed in mounting hole I, mounting hole II respectively, the first mirror 22 is fixed in the pool body 7 in the other end, the pool body wall of the end where the first mirror 22 is located is provided with an incident beam port and an exit beam port according to the direction of light beam, which are used to install the incident window piece 9 and the exit window piece 16 respectively;The incident mirror assembly and the exit mirror assembly are correspondingly provided outside the incident window piece 9 and the exit window piece 16, which are used to change the incident light beam and the exit light beam into horizontal direction perpendicular to the central axis of the White cell;The pool cover plate 24 seals the upper end of the pool body 7, and the pool sealing ring 25 is arranged between the pool cover plate 24 and the upper end of the pool body 7, and the air holes are opened on both sides of the pool cover plate 24, which can be connected with the sampling light path to extract the gas to be measured.

[0028] Therefore, the incident light beam is incident to the center of the incident mirror 13 in the horizontal direction perpendicular to the central axis of the White cell, and the light beam is reflected into the White cell through the incident window piece 9, and is reflected multiple times between the first mirror 22 and the second mirror 2 and the third mirror 5 in the pool body 7 according to the law of light reflection, and finally is emitted from the pool body 7 to the exit mirror 19 through the exit window piece 16, and the light beam changes into the horizontal direction perpendicular to the central axis of the pool body 7 to the detector of the spectrometer.

[0029] Specifically, the second mirror 2 is installed through the second mirror fixing plate 3 and the sealing ring I 1, the second mirror fixing plate 3 is fixed in the mounting hole I, the sealing ring mounting groove I is arranged in the mounting hole I, the sealing ring I 1 is installed in the sealing ring mounting groove I and is pressed on the second mirror fixing plate 3, and the second mirror fixing plate 3 faces the outside of the pool body 7.

[0030] The third mirror 5 is installed through the third mirror fixing plate 4 and the sealing ring II 6, the third mirror fixing plate 4 is fixed in the mounting hole II, the sealing ring mounting groove II is arranged in the mounting hole II, the sealing ring II 6 is installed in the sealing ring mounting groove II and is pressed on the third mirror fixing plate 4;The third mirror fixing plate 4 faces the outside of the pool body 7.

[0031] The first mirror 22 is a convex shape, the pool body 7 is provided with a first mirror mounting groove in the bottom, the first mirror 22 is arranged in the first mirror mounting groove, and the first mirror 22 is clamped and fixed by the stand column protruding from the inner wall of the pool body 7 at both ends;The upper surface of the first mirror 22 is pressed and fixed by the first mirror fixing plate 23, and the first mirror fixing plate 23 is fixed with the stand column at both ends of the first mirror 22.

[0032] The incident window sheet 9 and the emergent window sheet 16 are fixed by the annular fixing plate and the sealing ring, that is, the incident window sheet 9 is fixed by the incident annular fixing plate 10 and the sealing ring III 8, and the emergent window sheet 16 is fixed by the emergent annular fixing plate 15 and the sealing ring IV 17. The incident annular fixing plate 10 is fixed in the incident light beam port of the pool body 7 and faces the outside of the pool body 7; the sealing ring III 8 is fixed in the inside of the incident window sheet 9 and presses the incident window sheet 9 on the incident annular fixing plate 10.

[0033] The emergent annular fixing plate 15 is fixed in the emergent light beam port of the pool body 7 and faces the outside of the pool body 7; the sealing ring IV 17 is fixed in the inside of the emergent window sheet 16 and presses the emergent window sheet 16 on the emergent annular fixing plate 15.

[0034] The incident mirror assembly comprises an incident mirror frame 11, an incident mirror 13, an O-shaped gasket I 12 and an incident mirror fixing plate 14, the incident mirror frame 11 is provided with a mounting hole III, the incident mirror fixing plate 14 is fixed in the mounting hole III, and the O-shaped gasket I 12 presses the incident mirror 13 on the incident mirror fixing plate 14.

[0035] The emergent mirror assembly comprises an emergent mirror frame 21, an emergent mirror 19, an O-shaped gasket II 20 and an emergent mirror fixing plate 18, the emergent mirror frame 21 is provided with a mounting hole IV, the emergent mirror fixing plate 18 is fixed in the mounting hole IV, and the O-shaped gasket II 20 presses the emergent mirror 19 on the emergent mirror fixing plate 18.

[0036] In another embodiment, the inside surface of the incident mirror fixing plate 14 and the emergent mirror fixing plate 18 is provided with an annular boss.

[0037] In conclusion, the above is only a preferred embodiment of the utility model, and is not used for limiting the protection scope of the utility model. Any modification, equivalent replacement, improvement and the like made in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A Whitworth cell characterized in that, The application relates to a white cell, which comprises a cell body, a cell body cover plate, a first reflector, a second reflector, a third reflector, an incident window piece, an emission window piece, an incident mirror assembly and an emission mirror assembly. The second reflector is installed through a second reflector fixing plate and a sealing ring I; the second reflector fixing plate is fixed in the mounting hole I; the sealing ring I is installed in the sealing ring mounting groove I and presses the second reflector on the second reflector fixing plate; and the second reflector fixing plate faces the outside of the cell body.

2. The White cell of claim 1, wherein, The third reflector is installed through a third reflector fixing plate and a sealing ring II; the third reflector fixing plate is fixed in the mounting hole II; the sealing ring II is installed in the sealing ring mounting groove II and presses the third reflector on the third reflector fixing plate; and the third reflector fixing plate faces the outside of the cell body.

3. The White cell of claim 1, wherein, The first reflector is in the shape of a convex letter; the cell body is internally provided with a first reflector mounting groove; the first reflector is arranged in the first reflector mounting groove; and the first reflector is clamped and fixed through the vertical columns which protrude from the inner wall of the cell body and are arranged at the two ends of the first reflector. The incident window piece and the emission window piece are fixed through annular fixing plates and sealing rings; the two annular fixing plates are fixed in the incident light beam port and the emission light beam port of the cell body and face the outside of the cell body; and the two sealing rings are fixed in the inner sides of the incident window piece and the emission window piece and press the incident window piece and the emission window piece on the annular fixing plates.

4. The White cell of claim 1, wherein, The incident mirror assembly comprises an incident mirror frame, an incident mirror, an O-shaped gasket I and an incident mirror fixing plate; the incident mirror frame is provided with a mounting hole III; the incident mirror fixing plate is fixed in the mounting hole III; and the O-shaped gasket I presses the incident mirror on the incident mirror fixing plate.

5. The White cell of claim 1, wherein, The emission mirror assembly comprises an emission mirror frame, an emission mirror, an O-shaped gasket II and an emission mirror fixing plate; the emission mirror frame is provided with a mounting hole IV; the emission mirror fixing plate is fixed in the mounting hole IV; and the O-shaped gasket II presses the emission mirror on the emission mirror fixing plate.

6. A Wight cell according to any one of claims 1 to 5, wherein The inner sides of the incident mirror fixing plate and the emission mirror fixing plate are provided with annular bosses. ​ 7. The White cell of claim 6, wherein ​

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