Feeding assembly of inductively coupled plasma emission spectrometer

Abstract

The utility model discloses a feeding assembly of an inductively coupled plasma emission spectrometer, and belongs to the technical field of inductively coupled plasma emission spectrometers. Comprising a spectrograph main body, and an atomization device is arranged in the spectrograph main body; a feeding box is arranged above the atomization device, an outflow hole is formed in the bottom of the feeding box, and the feeding box communicates with the atomization device; an upper connecting pipe and a lower connecting pipe are arranged between the feeding box and the atomizing device; the upper connecting pipe and the lower connecting pipe are connected through an elastic sliding assembly, and the upper connecting pipe is arranged in a sliding mode relative to the lower connecting pipe. And an inserting groove is formed in the feeding box, and a filtering structure is arranged in the inserting groove. By arranging the two connecting pipes capable of relatively sliding and utilizing the elastic sliding assembly, the connecting pipes can be conveniently and rapidly disassembled and cleaned, it is guaranteed that the feeding assembly is not blocked, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model provides a feeding component of an inductively coupled plasma emission spectrometer, belonging to the technical field of inductively coupled plasma emission spectrometers. Background Art

[0002] An inductively coupled plasma optical emission spectrometer (ICP-OES) is an instrument widely used for elemental analysis and is particularly well suited for simultaneously determining the content of multiple elements. During operation, a high-frequency electromagnetic field (typically generated by a high-frequency inductively coupled coil) ionizes a gas (usually argon), forming a highly excited, high-temperature, and high-energy plasma. The sample, in liquid form, is converted into an aerosol by an atomizer and introduced into the plasma through a nebulizer. Within the plasma, the sample's atoms and ions are excited to a high-energy state, then return to a lower energy state and emit spectral lines. Different elements emit specific spectral lines with unique wavelengths. The emitted spectrum is decomposed into different wavelengths by the spectrometer's grating spectrometer or interferometer and then detected by a detector (such as a photomultiplier tube or CCD). The instrument determines the concentration of each element in the sample by analyzing the intensity of these spectral lines.

[0003] When feeding, the key step is to dissolve the sample to be tested in a solution and spray it out using an atomizer so that it can be introduced into the plasma. When dissolving solid samples, various solvents are used. After dissolution, impurities need to be filtered out before the solution is introduced into the atomizer through a connecting pipe to prevent the atomizer from clogging. Although the solution is filtered before being introduced into the atomizer, some impurities will still be deposited on the inner wall of the connecting pipe after long-term use. Regularly cleaning these impurities requires disassembling the connecting pipe, which is quite troublesome and also requires disassembling and cleaning the filter structure. To address the above problems, a feed component for an inductively coupled plasma emission spectrometer is needed that can facilitate the disassembly and cleaning of the filter structure and connecting pipe. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when feeding the spectrometer, the connecting pipe between the feeding assembly and the atomizing device is troublesome to disassemble and clean, which affects the working efficiency.

[0005] In order to solve the above problems, the utility model proposes the following technical solutions: a feeding assembly of an inductively coupled plasma emission spectrometer, comprising a spectrometer main body, an atomizing device being arranged in the spectrometer main body; a feeding box being arranged above the atomizing device, an outflow hole being provided at the bottom of the feeding box, an electric-controlled valve being provided in the outflow hole, and the feeding box being connected with the atomizing device through the outflow hole; an upper connecting pipe and a lower connecting pipe being arranged between the feeding box and the atomizing device; the upper connecting pipe corresponds to the outflow hole, and the lower connecting pipe corresponds to the inlet hole of the atomizing device; the upper connecting pipe and the lower connecting pipe are connected by an elastic sliding assembly, and the upper connecting pipe is slidably arranged relative to the lower connecting pipe; a slot is provided in the feeding box, a filtering structure is provided in the slot, and the filtering structure is fixedly connected to the feeding box by screws; an ultrasonic generator is provided on the spectrometer main body, and an ultrasonic oscillator head connected to the ultrasonic generator circuit is provided in the feeding box.

[0006] As an improvement, an annular groove is provided at the bottom of the feed box around the outlet hole, the upper end of the upper connecting pipe is located in the annular groove, and an elastic sealing ring is provided at the connection position between the two; a card groove corresponding to the inlet hole of the atomizing device is provided on the atomizing device, the lower end of the lower connecting pipe is located in the card groove, and an elastic sealing ring is also provided at the connection position between the two.

[0007] As an improvement, the elastic sliding assembly includes a sliding rod, a sliding plate, and a spring; a sliding groove is provided in the lower connecting tube, and the sliding rod is located in the sliding groove; the sliding plate is slidably arranged in the sliding groove, and the sliding plate is fixedly sleeved on the sliding rod; the spring is located below the sliding plate, and the spring is sleeved on the sliding rod; the outer wall and the inner wall of the lower connecting tube are provided with guide grooves connected to the sliding groove, and the sliding plate passes through the guide groove on the inner wall of the lower connecting tube and is fixedly connected to the upper connecting tube.

[0008] As an improvement, a guide hole connected to the slide groove is provided in the lower connecting tube, and the lower end of the sliding rod is slidably provided in the guide hole; the spring has a reserved compression amount, and an operating rod fixedly connected to the sliding plate is provided in the guide groove of the outer wall of the lower connecting tube.

[0009] As an improvement, the filtering structure includes a filter plate and a sealing plate. The filter plate is horizontally inserted into the slot, and the sealing plate is located outside the feed box, and the sealing plate is fixedly connected to the filter plate.

[0010] As an improvement, a groove is provided on the side wall of the feed box, the groove is blocked by a sealing plate, and the sealing plate is fixedly connected to the feed box by screws.

[0011] Beneficial effects of the utility model:

[0012] 1. An upper connecting pipe and a lower connecting pipe are provided between the feed box and the atomizing device. The upper connecting pipe and the lower connecting pipe are connected by an elastic sliding component, and the upper connecting pipe is slidingly arranged relative to the lower connecting pipe. By setting the elastic sliding component to connect the two connecting pipes, the two connecting pipes can be relatively contracted during disassembly or installation, shortening the length of the entire connecting pipe, thereby facilitating disassembly and installation, and facilitating cleaning of the connecting pipe.

[0013] 2. A slot is provided in the feed box, and a filtering structure is provided in the slot. By providing a plug-in filtering structure, the filtering structure can be easily disassembled and cleaned; an ultrasonic oscillator head connected to the ultrasonic generator circuit is provided in the feed box. The setting of the ultrasonic oscillator head can quickly defoam after the sample is dissolved, thereby avoiding excessive bubbles affecting the uniformity of atomization. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the present utility model.

[0015] Figure 2 This is a three-dimensional diagram from another perspective of the present invention.

[0016] Figure 3 It is a cross-sectional view of the feed box of the present invention.

[0017] Figure 4 This is an exploded diagram of the connection between the feed box and the atomization device of the present invention.

[0018] Figure 5 It is a cross-sectional view of the lower connecting pipe of the present utility model.

[0019] 1. Spectrometer body; 2. Feed box; 3. Ultrasonic generator; 4. Atomizing device; 5. Slot; 6. Outflow hole; 7. Ultrasonic oscillator; 8. Filter plate; 9. Groove; 10. Sealing plate; 11. Annular groove; 12. Upper connecting pipe; 13. Lower connecting pipe; 14. Slot; 15. Guide hole; 16. Sliding rod; 17. Operating rod; 18. Guide groove; 19. Sliding plate; 20. Slide groove; 21. Spring. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] according to Figure 1-5As shown: the utility model provides a feeding assembly of an inductively coupled plasma emission spectrometer: it includes a spectrometer body 1, an atomizing device 4 is arranged in the spectrometer body 1; a feeding box 2 is arranged above the atomizing device 4, and an outlet hole 6 is provided at the bottom of the feed box 2, an electric control valve is provided in the outlet hole 6, and the feed box 2 is connected with the atomizing device 4 through the outlet hole 6; an upper connecting pipe 12 and a lower connecting pipe 13 are provided between the feed box 2 and the atomizing device 4; the upper connecting pipe 12 corresponds to the outlet hole 6, and the lower connecting pipe 13 corresponds to the inlet hole of the atomizing device 4; the upper connecting pipe 12 and the lower connecting pipe 13 are connected by an elastic sliding assembly, and the upper connecting pipe 12 is slidably arranged relative to the lower connecting pipe 13; a slot 5 is provided in the feed box 2, a filtering structure is provided in the slot 5, and the filtering structure is fixedly connected to the feed box 2 by screws; an ultrasonic generator 3 is provided on the spectrometer body 1, and an ultrasonic oscillator head 7 circuit-connected to the ultrasonic generator 3 is provided in the feed box 2.

[0022] By providing two relatively slidable connecting pipes and utilizing an elastic sliding assembly, the connecting pipes can be quickly disassembled and cleaned, ensuring that the feed assembly will not be clogged, improving cleaning efficiency, and also facilitating cleaning of the filter structure.

[0023] like Figure 4 As shown, an annular groove 11 is provided at the bottom of the feed box 2 around the outlet hole 6, the upper end of the upper connecting pipe 12 is located in the annular groove 11, and an elastic sealing ring is provided at the connection position of the two, which can increase the connection sealing; a card groove 14 corresponding to the entrance hole of the atomizing device 4 is provided on the atomizing device 4, the lower end of the lower connecting pipe 13 is located in the card groove 14, and an elastic sealing ring is also provided at the connection position of the two, which can increase the connection sealing.

[0024] like Figure 5 As shown, the elastic sliding assembly includes a sliding rod 16, a sliding plate 19, and a spring 21; a sliding groove 20 is opened in the lower connecting tube 13, and the sliding rod 16 is located in the sliding groove 20; the sliding plate 19 is slidably set in the sliding groove 20, and the sliding plate 19 is fixedly sleeved on the sliding rod 16; the spring 21 is located below the sliding plate 19, and the spring 21 is sleeved on the sliding rod 16; the outer wall and the inner wall of the lower connecting tube 13 are both opened with a guide groove 18 connected to the sliding groove 20, and the sliding plate 19 passes through the guide groove 18 on the inner wall of the lower connecting tube 13 and is fixedly connected to the upper connecting tube 12. A guide hole 15 connected to the slide groove 20 is provided in the lower connecting tube 13, and the lower end of the sliding rod 16 is slidably set in the guide hole 15, which can guide the sliding of the sliding rod 16; the spring 21 has a reserved compression amount, which can continuously generate pressure on the sliding plate 19, thereby increasing the tightness of the connection between the upper connecting tube 12 and the feed box 2; an operating rod 17 fixedly connected to the sliding plate 19 is provided in the guide groove 18 on the outer wall of the lower connecting tube 13, which is convenient for the staff to operate.

[0025] like Figure 3 As shown, the filtering structure includes a filter plate 8 and a sealing plate 10. The filter plate 8 is horizontally inserted into the slot 5. The sealing plate 10 is located outside the feed box 2 and is fixedly connected to the filter plate 8. A groove 9 is provided on the side wall of the feed box 2. The sealing plate 10 blocks the groove 9 and is fixedly connected to the feed box 2 by screws. The arrangement of the groove 9 facilitates the passage of impurities on the filter plate 8 through the groove 9 when the filter plate 8 is removed.

[0026] Principle of the utility model

[0027] like Figure 1-3 As shown, before feeding, the electrically controlled valve in the outflow hole 6 is closed, and the solvent and sample are added to the feed box 2, with the sample located above the filter plate 8. After dissolution, some larger impurities cannot pass through the filter plate 8 and can only remain above the filter plate 8. After dissolution, the ultrasonic generator 3 can be activated to defoam the solution in the feed box 2 using the ultrasonic oscillator 7. The electrically controlled valve is then opened, allowing the solution in the feed box 2 to enter the atomizer 4 through the outflow hole 6, the upper connecting pipe 12, and the lower connecting pipe 13. The sample is converted from liquid to aerosol by the atomizer 4 and introduced into the plasma.

[0028] like Figure 3 As shown, when the filter plate 8 needs to be cleaned, just remove the screws and pull the sealing plate 10 together with the filter plate 8 out of the slot 5; and when the upper connecting tube 12 or the lower connecting tube 13 needs to be cleaned, first ensure that there is no solution in the feed box 2, pull the operating rod 17, and slide the sliding plate 19 downward, driving the upper connecting tube 12 to retract into the lower connecting tube 13, while the sliding plate 19 compresses the spring 21; at this time, the entire connecting tube becomes shorter, and the two connecting tubes can be directly taken out from between the feed box 2 and the atomizing device 4, which is quick and convenient, so that the connecting tubes can be cleaned. Similarly, when installing, ensure that this state is set between the feed box 2 and the atomizing device 4, insert the lower connecting tube 13 into the slot 14, release the operating rod 17, and under the action of the rebound force of the spring 21, the sliding plate 19 drives the upper connecting tube 12 to slide upward, and the upper connecting tube 12 is inserted into the annular groove 11, thereby completing the reconnection between the feed box 2 and the atomizing device 4, which is quick and simple.

[0029] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A feed assembly for an inductively coupled plasma emission spectrometer, comprising a spectrometer body (1), wherein an atomizing device (4) is provided in the spectrometer body (1); characterized in that: A feed box (2) is provided above the atomizing device (4), an outflow hole (6) is provided at the bottom of the feed box (2), an electric control valve is provided in the outflow hole (6), and the feed box (2) is communicated with the atomizing device (4) through the outflow hole (6); an upper connecting pipe (12) and a lower connecting pipe (13) are provided between the feed box (2) and the atomizing device (4); the upper connecting pipe (12) corresponds to the outflow hole (6), and the lower connecting pipe (13) corresponds to the inlet hole of the atomizing device (4); The upper connecting tube (12) and the lower connecting tube (13) are connected via an elastic sliding assembly, and the upper connecting tube (12) is slidably arranged relative to the lower connecting tube (13); a slot (5) is provided in the feed box (2), a filter structure is provided in the slot (5), and the filter structure is fixedly connected to the feed box (2) via screws; an ultrasonic generator (3) is provided on the spectrometer body (1), and an ultrasonic oscillator (7) connected to the ultrasonic generator (3) circuit is provided in the feed box (2).

2. The feed assembly of an inductively coupled plasma optical emission spectrometer according to claim 1, characterized in that: The bottom of the feed box (2) is provided with an annular groove (11) located around the outflow hole (6), the upper end of the upper connecting pipe (12) is located in the annular groove (11), and an elastic sealing ring is provided at the position where the two are connected; the atomizing device (4) is provided with a card groove (14) corresponding to the inlet hole of the atomizing device (4), the lower end of the lower connecting pipe (13) is located in the card groove (14), and an elastic sealing ring is also provided at the position where the two are connected.

3. The feed assembly of an inductively coupled plasma optical emission spectrometer according to claim 1, wherein: The elastic sliding assembly comprises a sliding rod (16), a sliding plate (19), and a spring (21); a sliding groove (20) is provided in the lower connecting tube (13), and the sliding rod (16) is located in the sliding groove (20); the sliding plate (19) is slidably arranged in the sliding groove (20), and the sliding plate (19) is fixedly sleeved on the sliding rod (16); the spring (21) is located below the sliding plate (19), and the spring (21) is sleeved on the sliding rod (16); the outer wall and the inner wall of the lower connecting tube (13) are both provided with a guide groove (18) connected to the sliding groove (20), and the sliding plate (19) passes through the guide groove (18) on the inner wall of the lower connecting tube (13) and is fixedly connected to the upper connecting tube (12).

4. The feed assembly of an inductively coupled plasma optical emission spectrometer according to claim 3, wherein: A guide hole (15) communicating with the slide groove (20) is provided in the lower connecting tube (13), and the lower end of the sliding rod (16) is slidably provided in the guide hole (15); the spring (21) has a reserved compression amount, and an operating rod (17) fixedly connected to the sliding plate (19) is provided in the guide groove (18) on the outer wall of the lower connecting tube (13).

5. The feed assembly of an inductively coupled plasma optical emission spectrometer according to claim 1, wherein: The filtering structure comprises a filter plate (8) and a sealing plate (10), wherein the filter plate (8) is horizontally inserted into the slot (5), the sealing plate (10) is located outside the feed box (2), and the sealing plate (10) is fixedly connected to the filter plate (8).

6. The feed assembly of an inductively coupled plasma optical emission spectrometer according to claim 5, characterized in that: A groove (9) is provided on the side wall of the feed box (2), the groove (9) is blocked by a sealing plate (10), and the sealing plate (10) is fixedly connected to the feed box (2) by screws.

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