阅读说明：本技术 一种气相色谱仪载气净化装置 (Gas chromatograph carrier gas purifier ) 是由 张翠翠 于 2020-12-05 设计创作，主要内容包括：本发明公开了一种气相色谱仪载气净化装置,包括净化装置和回收装置,所述回收装置设于净化装置一侧,所述净化装置包括净化箱本体、过氧箱、氧化铜粉末箱、石灰水箱和干燥箱,所述过氧箱内设有固定块、铜网和加热管,所述过氧箱和氧化铜粉末箱之间连通设有气管一,所述石灰水箱与氧化铜粉末箱之间连通设有气管二,所述干燥箱和石灰水箱连通设有气管三。本发明属于气体净化技术领域,具体是提供了一种能够有效提高载气的使用效率,依次通过净化装置使载气内的杂质被充分吸收,通过泄气罐避免净化装置泄漏的载气污染空气,使得泄漏的载气循环利用,加热管和加热盘的设置使的净化装置持续的净化载气的气相色谱仪载气净化装置。(The invention discloses a carrier gas purification device of a gas chromatograph, which comprises a purification device and a recovery device, wherein the recovery device is arranged on one side of the purification device, the purification device comprises a purification box body, a peroxide box, a copper oxide powder box, a lime water box and a drying box, a fixing block, a copper mesh and a heating pipe are arranged in the peroxide box, a first air pipe is communicated between the peroxide box and the copper oxide powder box, a second air pipe is communicated between the lime water box and the copper oxide powder box, and a third air pipe is communicated between the drying box and the lime water box. The invention belongs to the technical field of gas purification, and particularly provides a gas chromatograph carrier gas purification device which can effectively improve the use efficiency of carrier gas, impurities in the carrier gas are fully absorbed through a purification device in sequence, the carrier gas leaked by the purification device is prevented from polluting air through an air leakage tank, the leaked carrier gas is recycled, and the purification device continuously purifies the carrier gas through the arrangement of a heating pipe and a heating plate.)

1. A gas chromatograph carrier gas purifier which characterized in that: the device comprises a purification device and a recovery device, wherein the recovery device is arranged on one side of the purification device, the purification device comprises a purification box body, a peroxide box, a copper oxide powder box, a lime water box and a drying box, the peroxide box is arranged on the upper wall of the purification box body, a support column is arranged below the purification box body, an air inlet pipe is communicated with the peroxide box, a fixed block, a copper net and a heating pipe are arranged in the peroxide box, the fixed block is arranged on the inner walls of two sides of the peroxide box, the copper net is arranged between the fixed blocks, the heating pipe is arranged below the copper net, the copper oxide powder box is arranged at the bottom of the purification box body, a first air pipe is communicated between the peroxide box and the copper oxide powder box, copper oxide powder is arranged in the copper oxide powder box, a heating plate is arranged below the, the lime water tank is arranged on one side of the copper oxide powder tank, a second air pipe is communicated between the lime water tank and the copper oxide powder tank, the drying cavity is arranged on the side wall above the lime water tank, an activated carbon layer and a water absorbent cotton layer are arranged in the drying cavity, a third air pipe is communicated with the lime water tank and arranged at the bottom of the drying cavity, the third air pipe penetrates through the activated carbon layer and is attached to the water absorbent cotton layer, an air outlet pipe is arranged above the purifying box body and communicated with the purifying box body and arranged in the drying cavity, the recovery device comprises an air release tank, an air pump, an air exhaust pipe and an air return pipe, the air release tank is arranged on one side of the purifying box body, an exhaust pipe is communicated between the air release tank and the purifying box body, a pneumatic valve is arranged in the exhaust pipe and comprises a round platform cavity, a cylindrical cavity and a control ball, and the cylindrical cavity is arranged at, the one end of gas pitcher is kept away from in the cylinder chamber is located to round platform chamber intercommunication, round platform shape intracavity is located to the control ball joint, the jar lateral wall that loses heart is located to the air pump, the air pump input is located to the exhaust tube, exhaust tube and jar intercommunication that loses heart, the exhaust tube is equipped with the relief valve, and the exhaust tube break-make is controlled to the relief valve, the air pump output is located to the muffler, and the muffler runs through the purifying box body lateral wall and peroxy case intercommunication, and the radius of round platform chamber and control ball contact site is less than the control ball radius.

2. A gas chromatograph carrier gas purification device according to claim 1, characterized in that: and the air leakage tank is provided with an air pressure gauge.

3. A gas chromatograph carrier gas purification device according to claim 1, characterized in that: the heating device is characterized in that an air pump switch, a heating pipe button and a heating plate button are arranged on one side of the box body, the air pump switch is electrically connected with an air pump, the heating pipe button is electrically connected with a heating pipe, and the heating plate button is electrically connected with a heating plate.

4. A gas chromatograph carrier gas purification device according to claim 1, characterized in that: and a protection box is arranged on the outer side of the air pump.

5. A gas chromatograph carrier gas purification device according to claim 1, characterized in that: and the communicating parts of the air inlet pipe, the air outlet pipe, the air exhaust pipe, the air return pipe, the first air pipe, the second air pipe and the third air pipe are respectively provided with a sealing ring.

6. A gas chromatograph carrier gas purification device according to claim 1, characterized in that: the improved water purification box is characterized in that a drain pipe is arranged on one side of the purification box body, a valve is arranged on the drain pipe, the drain pipe penetrates through the side wall of the purification box body and is communicated with an activated carbon layer, a water inlet and outlet pipe is arranged on one side of the purification box body, the water inlet and outlet pipe penetrates through the box body and is arranged in a lime water tank, a water inlet and outlet valve is arranged on the water inlet and outlet pipe, an opening is formed in one end of the purification box body and is communicated with a copper oxide powder box, a door frame is arranged at the opening, a rubber sealing gasket is arranged on the inner side of the door frame, a.

Technical Field

The invention belongs to the technical field of gas purification, and particularly relates to a gas chromatograph carrier gas purification device.

Background

The chromatograph is an important instrument for analyzing production processes and product components in the pharmaceutical industry, the quality of carrier gas directly influences the accuracy of chromatograph analysis data and the service life of the instrument, the accuracy of chromatograph analysis data is related to the transmission of quantities among all working procedures, and simultaneously is related to economic benefits of enterprises, although the purity requirement of the laboratory gas chromatograph on the carrier gas is more than 99%, the detection effect of the chromatograph can be influenced because the current production technology of nitrogen in China is limited, the accuracy requirement of the laboratory is difficult to achieve in the actual industrial production, and the nitrogen in the industrial production contains impurities such as carbon monoxide, oxygen, carbon dioxide, moisture and the like, so that the practicability of the chromatograph is reduced.

The present laboratory gas chromatograph has high purity requirement on the carrier gas, when performing chromatographic analysis with high accuracy requirement, the gas chromatograph is often provided with a deoxidation pipe and a dehydration pipe to remove impurities in the carrier gas, but the content of moisture and oxygen in nitrogen is large, the service life of the deoxidation pipe and the dehydration pipe is greatly shortened, the original gas chromatograph carrier gas purification device sequentially passes gas through the purification device through a pipeline, the purification device is exposed in the air to pollute the atmospheric environment, and simultaneously the gas can be contacted with the outside air to cause impure gas.

Disclosure of Invention

In order to solve the existing problems, the invention provides a gas chromatograph carrier gas purification device which solves the problems that the purification device can pollute the atmospheric environment for a long time when exposed in the air and the gas is impure due to the contact of the gas and the external air.

The technical scheme adopted by the invention is as follows: the invention relates to a carrier gas purification device of a gas chromatograph, which comprises a purification device and a recovery device, wherein the recovery device is arranged on one side of the purification device, the purification device comprises a purification box body, a peroxide box, a copper oxide powder box, a lime water box and a drying box, the peroxide box is arranged on the upper wall of the purification box body, a support column is arranged below the purification box body and is used for supporting and stabilizing the purification box body, an air inlet pipe is arranged on the peroxide box in a communicating manner and is used for the entering of carrier gas, a fixed block, a copper net and a heating pipe are arranged in the peroxide box, the fixed block is arranged on the inner walls of two sides of the peroxide box, the copper net is arranged between the fixed blocks, the heating pipe is arranged below the copper net and is used for removing oxygen in the carrier gas, the copper oxide powder box is arranged at the bottom of, the recycling device comprises a gas release tank, a copper oxide powder is arranged in a copper oxide powder box, a heating plate is arranged below the copper oxide powder box, the heating plate is used for heating the copper oxide powder in the copper oxide powder box to remove carbon monoxide contained in carrier gas conveniently, a lime water box is arranged at the bottom of a purification box body and is arranged on one side of the copper oxide powder box, a second gas pipe is communicated and arranged between the lime water box and the copper oxide powder box, the drying box is arranged on the side wall above the lime water box, an activated carbon layer and a water absorbent cotton layer are arranged in the drying box, a third gas pipe is communicated and arranged between the drying box and the lime water box, the activated carbon layer is arranged at the bottom of the drying box, the third gas pipe penetrates through the activated carbon layer and is attached to the water absorbent cotton layer, the water absorbent cotton is used for removing moisture in the carrier gas conveniently, a gas outlet pipe is arranged above the purification box, Air pump, exhaust tube and muffler, purifying box body one side is located to the jar that loses heart, it is equipped with the blast pipe to let out the intercommunication between gas pitcher and the purifying box body, and the blast pipe is convenient for arrange the carrier gas that leaks in the purifying box body to the jar that loses heart in, be equipped with the pneumatic valve in the blast pipe, the pneumatic valve includes round platform chamber, cylindrical cavity and control ball, the cylindrical cavity is located the blast pipe and is close to jar one end that loses heart, round platform chamber intercommunication is located the cylindrical cavity and is kept away from the one end that lets out the gas pitcher, the control ball joint is located round platform chamber, the air pump is located the jar lateral wall that loses heart, the exhaust tube is located the air pump input, exhaust tube and jar intercommunication that loses heart, the exhaust tube is equipped with the relief valve, and the break-make of pressure relief valve control exhaust tube, the air pump output is located to the, The carrier gas leaked from the copper oxide powder box, the lime water box and the drying box enters an atmosphere polluted environment, the air pump is used for conveying the carrier gas into the peroxide box from the air release tank to enable the leaked carrier gas to be purified again, the radius of a contact part of the circular truncated cone cavity and the control ball is smaller than that of the control ball, when the carrier gas leaks from the purifying box body, the air pressure in the purifying box body is larger than the air pressure in the air release tank, the carrier gas in the purifying box body flows to the air release tank along the exhaust pipe to push the control ball to move to one side far away from the cylindrical cavity, so that a gap is generated between the control ball and the cavity wall of the circular truncated cone cavity, the exhaust pipe is communicated, the leaked carrier gas flows into the air release tank along the exhaust pipe, and when the air pressure in the air release tank is larger than the air pressure in the purifying box body, the air in the air release tank, the blast pipe blocks up to be died and cuts, and the gas in the jar of disappointing can't be to this internal flow of purifying box, and when this internal gas pressure of purifying box was greater than the jar internal gas pressure of disappointing once more, the blast pipe switched on once more, carries the carrier gas through the air pump and carries purification treatment once more in the peroxy case, avoids the carrier gas to get into the atmosphere polluted environment.

Further, the air leakage tank is provided with a barometer, the barometer is used for monitoring the air pressure in the air leakage tank, and the pressure release valve is opened when the air pressure is high so as to convey the carrier gas to the peroxide box through the air pump.

Further, box one side is equipped with air pump switch, heating pipe button and heating plate button, air pump switch and air pump electric connection, heating pipe button and heating pipe electric connection, heating plate button and heating plate electric connection.

Furthermore, a protection box is arranged on the outer side of the air pump and used for protecting the air pump.

Furthermore, the communicating parts of the air inlet pipe, the air outlet pipe, the exhaust pipe, the air return pipe, the first air pipe, the second air pipe and the third air pipe are respectively provided with a sealing ring, and the sealing rings are used for preventing carrier gas from leaking to atmosphere to pollute the environment.

Furthermore, one side of the purifying box body is provided with a drain pipe, the drain pipe is provided with a valve, the drain pipe penetrates through the side wall of the purifying box body and is communicated with the activated carbon layer, the drain pipe is used for discharging the moisture absorbed by the activated carbon layer, the valve is convenient for controlling the drain pipe to drain periodically, one side of the purifying box body is provided with a water inlet and outlet pipe which penetrates through the box body and is communicated with the lime water tank, the water inlet and outlet pipe is provided with a water inlet and outlet valve, the water inlet and outlet pipe is convenient for periodically replacing lime water in the lime water tank, one end of the purifying box body is provided with an opening which is communicated with the copper oxide powder box, the opening is provided with a door frame, the inner side of the door frame is provided with a rubber sealing gasket which is used for sealing the copper oxide powder box, the improved copper oxide box is characterized in that a door shaft is arranged on one side of the door frame, a box door is rotatably arranged on the door shaft, a handle is arranged on the box door, and the box door is used for periodically replacing copper oxide powder in the copper oxide box.

The invention with the structure has the following beneficial effects: this scheme a gas chromatograph carrier gas purifier simple structure, and reasonable design, low cost, and is easy and simple to handle, can effectively improve carrier gas's availability factor, loop through the impurity in purifier makes the carrier gas fully absorbed, avoid the carrier gas contaminated air of purifier leakage through disappointing jar, make the carrier gas cyclic utilization of leakage, it avoids the carrier gas to flow back to this internal too big damage purifier that causes of purifier body internal pressure to let out to set up the pneumatic valve between jar and the purifier body, the setting up of heating pipe and heating plate makes the purification carrier gas that purifier lasts, and the efficiency is improved.

Drawings

FIG. 1 is a schematic view of the internal structure of a gas chromatograph carrier gas purification device according to the present invention;

fig. 2 is a front view of a gas chromatograph carrier gas purification device of the present invention.

Wherein, 1, a purification device, 2, a recovery device, 3, a purification box body, 4, a peroxide box, 5, a copper oxide powder box, 6, a lime water box, 7, a drying box, 8, a support column, 9, an air inlet pipe, 10, a fixed block, 11, a copper mesh, 12, a heating pipe, 13, a first air pipe, 14, a heating plate, 15, a second air pipe, 16, an activated carbon layer, 17, a water absorption cotton layer, 18, a third air pipe, 19, an air outlet pipe, 20, an air release tank, 21, an air pump, 22, an air suction pipe, 23, an air return pipe, 24, an air outlet pipe, 25, a pneumatic valve, 26, a circular truncated cone shaped cavity, 27, a cylindrical cavity, 28, a control ball, 29, a pressure release valve, 30, an air pressure gauge, 31, an air pump switch, 32, a heating pipe button, 33, a heating plate button, 34, a protection box, 35, a sealing ring, 36, a drain pipe, 37, a valve, 38, a, 41. rubber sealing gasket, 42, door shaft, 43, door, 44 and handle.

Detailed Description

The technical solutions of the present invention will be further described in detail with reference to specific implementations, and all the portions of the present invention not described in detail are the prior art.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the carrier gas purification device of the phase chromatograph comprises a purification device 1 and a recovery device 2, wherein the recovery device 2 is arranged on one side of the purification device 1, the purification device 1 comprises a purification box body 3, a peroxide box 4, a copper oxide powder box 5, a lime water box 6 and a drying box 7, the peroxide box 4 is arranged on the upper wall of the purification box body 3, a support column 8 is arranged below the purification box body 3, an air inlet pipe 9 is communicated with the peroxide box 4, fixed blocks 10, a copper net 11 and heating pipes 12 are arranged in the peroxide box 4, the fixed blocks 10 are arranged on the inner walls of the two sides of the peroxide box 4, the copper net 11 is arranged between the fixed blocks 10, the heating pipes 12 are arranged below the copper net 11, the copper oxide powder box 5 is arranged at the bottom of the purification box body 3, and a first air pipe 13 is communicated between the peroxide, copper oxide powder is arranged in the copper oxide powder box 5, a heating plate 14 is arranged below the copper oxide powder box 5, the lime water box 6 is arranged at the bottom of the purifying box body 3, the lime water box 6 is arranged on one side of the copper oxide powder box 5, a second air pipe 15 is communicated between the lime water box 6 and the copper oxide powder box 5, the drying box 7 is arranged on the side wall above the lime water box 6, an activated carbon layer 16 and a water absorption cotton layer 17 are arranged in the drying box 7, the drying box 7 and the lime water box 6 are communicated and provided with a third air pipe 18, the activated carbon layer 16 is arranged at the bottom of the drying box 7, the third air pipe 18 penetrates through the activated carbon layer 16 and is attached to the water absorption cotton layer 17, an air outlet pipe 19 is arranged above the purifying box body 3, the air outlet pipe 19 penetrates through the purifying box body 3 and is communicated and arranged in the drying box 7, the recovery device 2 comprises an air release tank 20, the gas discharge tank 20 is arranged at one side of the purifying box body 3, an exhaust pipe 24 is communicated between the gas discharge tank 20 and the purifying box body 3, a pneumatic valve 25 is arranged in the exhaust pipe 24, the pneumatic valve 25 comprises a circular truncated cone cavity 26, a cylindrical cavity 27 and a control ball 28, the cylindrical cavity 27 is arranged at one end of the exhaust pipe 24 close to the gas discharge tank 20, the truncated cone cavity 26 is communicated with one end of the cylindrical cavity 27 far away from the gas discharge tank 20, the control ball 28 is clamped in the circular truncated cone-shaped cavity 26, the air pump 21 is arranged on the side wall of the air relief tank 20, the air exhaust tube 22 is arranged at the input end of the air pump 21, the air exhaust tube 22 is communicated with the air escape tank 20, the air pumping pipe 22 is provided with a pressure release valve 29, the pressure release valve 29 controls the on-off of the air pumping pipe 22, the air return pipe 23 is arranged at the output end of the air pump 21, the air return pipe 23 penetrates through the side wall of the purifying box body 3 and is communicated with the peroxide box 4, and the radius of the contact part of the circular truncated cone-shaped cavity 26 and the control ball 28 is smaller than that of the control ball 28.

Wherein, be equipped with barometer 30 on the gas release jar 20, box one side is equipped with air pump switch 31, heating pipe button 32 and heating plate button 33, air pump switch 31 and air pump 21 electric connection, heating pipe button 32 and heating pipe 12 electric connection, heating plate button 33 and heating plate 14 electric connection, the air pump 21 outside is equipped with guard box 34, intake pipe 9, outlet duct 19, exhaust tube 22, muffler 23, trachea one 13, two 15 and the three 18 intercommunications of trachea are equipped with sealing washer 35 respectively, purifying box body 3 one side is equipped with drain pipe 36, be equipped with valve 37 on the drain pipe 36, the drainage runs through purifying box body 3 lateral wall and activated carbon layer 16 intercommunication, purifying box body one side is equipped with business turn over water pipe 38, business turn over water pipe 38 runs through the box intercommunication and locates the lime water tank, be equipped with outlet valve 39 on business turn over water pipe 38, the copper oxide powder purifying box is characterized in that an opening is formed in one end of the purifying box body and communicated with a copper oxide powder box, a door frame 40 is arranged at the opening, a rubber sealing gasket 41 is arranged on the inner side of the door frame 40, a door shaft 42 is arranged on one side of the door frame 40, a box door 43 is arranged on the door shaft 42 in a rotating mode, and a handle 44 is arranged on the box door 43.

When the device is used specifically, the integrity of the device is checked, the peroxy box 4, the copper oxide powder end box 5, the lime water box 6 and the drying box 7 are checked, the box door 43 rotates around the door shaft 42 to open the adding or replacing of copper oxide powder into the copper oxide powder end box, the water inlet and outlet valve 39 is opened to add or replace lime water into the lime water box through the water inlet and outlet pipe 38, the heating pipe button 32 and the heating plate button 33 are pressed respectively to heat the heating pipe 12 and the heating plate 14, the heating pipe 12 heats the copper mesh 11, the heating plate 14 heats the copper oxide powder, the carrier gas enters the purifying box body 3 through the air inlet pipe 9, the carrier gas firstly enters the peroxy box 4, the heated copper mesh 11 and the impurity oxygen in the carrier gas undergo a chemical reaction, the oxygen is reacted, the carrier gas after primary oxygen purification enters the copper oxide powder end box 5 through the air pipe one 13, the heated copper oxide powder and the impurity carbon monoxide in the carrier gas react, carbon monoxide is reacted, carrier gas after carbon monoxide is purified secondarily enters the lime water tank 6 through the second air pipe 15, carbon dioxide as an impurity in the carrier gas reacts with lime water, the carbon dioxide is reacted, the carrier gas after carbon dioxide is purified thirdly enters the drying box 7 through the third air pipe 18, the absorbent cotton layer 17 absorbs and dries the carrier gas for moisture contained in the carrier gas, the activated carbon layer 16 is used for absorbing the moisture contained in the absorbent cotton layer 17 so as to ensure the water absorption of the absorbent cotton layer 17, the carrier gas is purified and discharged through the air outlet pipe 19, the air leakage tank 20 is communicated with the purifying box body 3 through the air outlet pipe 24, the air outlet pipe 24 is used for recycling the carrier gas leaked from the pipeline connection part in the purifying box body 3, the leaked carrier gas enters the pressure leakage tank through the air outlet pipe 24, the pneumatic valve 25 arranged in the air outlet pipe 24 avoids carrier gas backflow, the radius of the contact part of the circular truncated cone 26 and the control ball 28 is smaller than that, when carrier gas leaks from the purifying box body 3, the air pressure in the purifying box body 3 is greater than the air pressure in the air relief tank 20, the carrier gas in the purifying box body 3 flows into the air relief tank 20 along the exhaust pipe 24 to push the control ball 28 to move towards the side far away from the cylindrical cavity 27, so that a gap is generated between the control ball 28 and the cavity wall of the circular truncated cone shaped cavity 26, the exhaust pipe 24 is communicated, the leaked carrier gas flows into the air relief tank 20 along the exhaust pipe 24, when the air pressure in the air relief tank 20 is greater than the air pressure in the purifying box body 3, the air in the air relief tank 20 pushes the control ball 28 to be close to the cylindrical cavity 27, so that the side wall of the control ball 28 is in close contact with the cavity wall of the circular truncated cone shaped cavity 26 to block the circular truncated cone shaped cavity 26, the exhaust pipe 24 is blocked, the air in the air relief tank 20 cannot flow into the purifying box body 3 normally, when the air pressure in, the barometer 30 shows and leaks the gas pressure of gas pitcher 20, presses the switch of air pump 21 when jar 20 atmospheric pressure that loses heart is too big, and the air pump 21 input is connected with exhaust tube 22, and the output of air pump 21 is connected with muffler 23, and the carrier gas that will lose heart in the jar 20 is carried and is purified the carrier gas again in peroxy case 4, avoids the carrier gas to leak the atmosphere polluted environment, discharges the absorbent moisture of activated carbon layer 16 through drain pipe 36, and valve 37 is convenient for control drain pipe 36 and regularly drains.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.