CN106621745A - Bamboo joint series-combined vacuum-pumping exhaust gas purification pipe - Google Patents

Abstract

The invention relates to a bamboo joint series combined vacuum exhaust gas purification pipe, which comprises an externally threaded buffer pipe with an air inlet at the head section, an internally threaded buffer pipe with an air outlet at the tail section, and at least one of the two ends respectively having internal and external threads and one end having a hole. The middle purification pipe of the head, the middle purification pipe of the bamboo joint series combined vacuum exhaust gas purification pipe is sequentially connected through internal and external threads, and then combined with the head and tail section buffer pipes through corresponding thread connections, the bamboo joint series combined vacuum exhaust gas purification pipe The middle purification pipe of the vacuum tail gas purification pipe can be filled with desiccant, adsorbent, oxidant, reducing agent, catalyst, filter cotton, etc. according to different chemical reaction systems, and the pore diameter of the porous head of the middle purification pipe is smaller than the filled dry Diameters of agents, adsorbents, oxidizing agents, reducing agents, catalysts, etc. The beneficial effects are: effectively purifying the vacuum tail gas, protecting the vacuum pump; being convenient to disassemble and reducing the production cost.

Description

A bamboo joint series combined vacuum exhaust gas purification pipe

technical field

The invention belongs to the field of experimental equipment, in particular to a device for protecting a vacuum pump of a chemical experiment reaction system using a vacuum pump,

Background technique

At present, in the vacuum reaction system of chemical experiments, a small amount of organic solvent in the reactor will be vaporized and pumped into the vacuum pump together with the gas phase in the vacuum state. When the organic solvent enters the vacuum pump, the vacuum pumping force will drop, and even cause mechanical failure, affecting the life of the vacuum pump. The known method is to add multiple groups of glass drying towers or condensers, but the glass drying towers have poor stability, are prone to lodging, and are easy to block; the condensers take up a lot of space, consume high energy, are dangerous to operate, and have mediocre effects.

Contents of the invention

In order to solve the above problems, a device for protecting the vacuum pump is provided, and a bamboo joint series combined vacuum exhaust gas purification tube is invented. The invention can not only effectively purify the vacuum exhaust gas, but also improve the entrainment of organic solvents, so that the vacuum pumping force of the vacuum pump decreases or even occurs. It also has the advantages of simple structure, small size, good stability, easy maintenance, safety and durability.

The technical solution adopted by the present invention to solve its technical problems is:

The bamboo joint series combined vacuum exhaust gas purification pipe includes an externally threaded buffer pipe with an air inlet at the head section, an internally threaded buffer pipe with an air outlet at the tail section, and at least one with internal and external threads at both ends and a cap with a hole at one end. The middle section of the purification pipe, the middle section of the bamboo joint series combined vacuum exhaust gas purification pipe is sequentially connected through internal and external threads, and then combined with the first and last two buffer pipes through corresponding thread connections, the bamboo joint series combined vacuum exhaust gas The middle purification pipe of the purification pipe can be filled with desiccant, adsorbent, oxidizing agent, reducing agent, catalyst, filter cotton, etc. according to different chemical reaction systems. Diameter of adsorbent, oxidizing agent, reducing agent, catalyst, etc.

A further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the purification pipe is made of one or more of transparent glass, resin material and stainless steel material.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the outer diameter of the middle section of the purification pipe is 4-10cm, the length is 12-25cm, and the outer diameter of the first and last two buffer pipes is 4-15cm. The length is 3-10cm.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the pipe diameter of the air inlet of the first section buffer pipe is 5-10mm, and the length is 3-6cm, and the pipe of the air outlet of the tail section buffer pipe The diameter is 5-10mm, and the length is 3-6cm.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the end of the middle purification pipe with holes can be located at the end of the external thread or at the end of the internal thread.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the hole diameter of the head with holes in the middle section of the purification pipe is 2-15 mm, and all of them are located at the head.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the air inlet of the first section buffer pipe can be straight or bent at 90°, and the air outlet of the tail section buffer pipe can be straight or 90° bending.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the air inlet of the first section buffer pipe can be located at the tail end or side end of the buffer pipe, and the air outlet of the tail section buffer pipe can be located at the end of the buffer pipe. end or side.

The further design of the bamboo joint series combined vacuum exhaust gas purification pipe is that the head of the first buffer pipe can be a circular head, an elliptical head or a straight head, and the head of the tail buffer pipe can be round. Shaped head, oval head or straight head.

The advantages of the present invention are as follows:

The bamboo joint series combined vacuum exhaust gas purification tube of the present invention can not only effectively purify the vacuum exhaust gas, but also improve the phenomenon that the organic solvent is entrained to cause the vacuum pumping force of the vacuum pump to drop or even cause mechanical failure. It also has the advantages of simple structure, small volume, good stability, Easy to disassemble, easy to replace consumables, easy to maintain, safe and durable.

Description of drawings

Figure 1 is the internal structure diagram of the bamboo joint series combined vacuum exhaust gas purification pipe

Figure 2 is the structural diagram of the internally threaded buffer tube at the tail section

Figure 3 is the structural diagram of the middle purification pipe

Figure 4 is the structural diagram of the externally threaded buffer tube at the head section

1- is the air inlet, 2 is the head buffer pipe, 3- the middle purification pipe, 4- the middle purification pipe, 5- the tail buffer pipe

detailed description

The solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the bamboo joint series combined vacuum exhaust gas purification pipe provided in this embodiment includes a head section with an externally threaded buffer pipe with an air inlet, a tail section with an internally threaded buffer pipe with an air outlet, and two internally and externally threaded buffer pipes at both ends. One end has a middle-section purification pipe with a porous head, and the middle-section purification pipe of the bamboo joint series combined vacuum exhaust gas purification pipe is sequentially connected through internal and external threads, and then combined with the first and last two buffer pipes through corresponding thread connections; as shown in Figure 3, the middle section The purification pipe is filled with desiccant and oxidant, and the pore diameter of the head with pores in the middle purification pipe is 2mm. As shown in Figure 2, the diameter of the gas outlet of the tail section buffer tube is 8mm and the length is 4cm. As shown in Figure 4, the diameter of the air inlet of the buffer tube at the head section is 8mm and the length is 4cm. On the other hand, there can be one or more purification pipes in the middle section, and the principle is the same as above, which will not be repeated here.

Further, the purification pipe of this embodiment is made of transparent resin or glass.

More preferably, the outer diameter of the middle purification tube is 6 cm and the length is 15 cm, the outer diameter of the head buffer tube is 6 cm and the length is 5 cm, and the outer diameter of the tail buffer tube is 6 cm and the length is 5 cm.

The bamboo joint series combined vacuum exhaust gas purification pipe of this embodiment can not only effectively remove impurities in the exhaust gas of the vacuum system, but also reduce vacuum loss. On the other hand, the purification pipe is easy to disassemble, which is convenient for replacing consumables and greatly reduces the production cost.

Claims (9)

1. a kind of ring serial combination type vacuumizes tail gas clean-up pipe, including head section inlet external screw thread separator tube, rear band Gas outlet internal thread separator tube and at least one two ends have internal and external threads respectively and there is the purification of the stage casing with hole end socket pipe one end, The ring serial combination type is vacuumized the stage casing purification pipe of tail gas clean-up pipe and is sequentially connected by internal and external threads, then with head and the tail By corresponding threaded connection combination, the ring serial combination type vacuumizes the stage casing purification of tail gas clean-up pipe to two sections of separator tubes Pipe can, adsorbent desiccant-filled according to different chemical reaction systems, oxidant, reducing agent, catalyst, filter pulp etc., it is described Drier, adsorbent, oxidant, reducing agent, catalyst of the pore diameter with hole end socket of stage casing purification pipe less than filling Equal diameter.

2. according to claim 1 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that the purification pipe is adopted With one or more of clear glass, resin material and stainless steel material.

3. according to claim 2 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that interlude purification pipe External diameter be 4-10cm, length is 12-25cm, head and the tail two sections of separator tubes external diameter be 4-15cm, length is 3-10cm.

4. according to claim 3 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that stage casing purification pipe Band hole end socket may be located at external screw thread one end, it is also possible to positioned at internal thread one end.

5. ring serial combination type vacuumizes tail gas clean-up pipe according to right wants 4, it is characterised in that stage casing purifies the band of pipe The aperture of hole end socket is 2-15mm, and portion is at end socket.

6. according to claim 1 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that first section separator tube The caliber of air inlet is 5-10mm, and length is 3-6cm, and the caliber of the gas outlet of rear separator tube is 5-10mm, and length is 3- 6cm。

7. according to claim 6 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that first section separator tube Air inlet can be straight type or 90 ° of bendings, and the gas outlet of rear separator tube can be straight type or 90 ° of bendings.

8. according to claim 7 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that first section separator tube Air inlet may be located at the tail end or side of separator tube, the gas outlet of rear separator tube may be located at the tail end of separator tube or Side.

9. according to claim 8 ring serial combination type vacuumizes tail gas clean-up pipe, it is characterised in that first section separator tube End socket can with circular head, ellipse head or straight type end socket, the end socket of rear separator tube can with circular head, ellipse head or The straight type end socket of person.