CN220817960U - Linkage system for exhaust and air supplement of clean tabletting room - Google Patents

Abstract

The utility model discloses a linkage system for exhausting and supplementing air in a clean tabletting room, which comprises the following components: clean air conditioning unit, tablet press and dust remover, clean air conditioning unit is equipped with crude effect new trend section, mixed section, table cold segment, heating section, humidification section, fan case, the section of flow equalizing and high-and-medium efficiency air-out section, crude effect new trend section is connected with the new trend pipe, mixed section passes through return air pipe intercommunication clean room, high-and-medium efficiency air-out section passes through blast pipe intercommunication clean room, the tablet press passes through pipeline intercommunication dust remover, be equipped with a plurality of room air exit in clean room, be equipped with the electronic blast gate of second on the second blast gate, the dust remover passes through first blast gate intercommunication third blast gate, be equipped with first electronic blast gate on the first blast gate. The utility model can switch the air exhaust mode of the clean room in time in the start-stop process of the tablet press of the clean room, keep the total positive pressure air quantity of the room unchanged, reduce the great fluctuation of the air pressure in the clean room, further avoid the risk that the product is possibly polluted and ensure the quality of the final product.

Description

Linkage system for exhaust and air supplement of clean tabletting room

Technical Field

The utility model relates to the technical field of exhaust equipment, in particular to an exhaust and air supplementing linkage system of a clean tabletting room.

Background

Tabletting is one way of dry forming a drug, and a tablet press is generally used to compress dry raw powder or granules into tablets of different shapes and different doses in a die. The tabletting operation is generally carried out in a clean room, a large amount of dust is generally generated in the tabletting process, the early tabletting machine has poor control on the dust, and the dust is easy to be dispersed to all parts of a room, so that the clean room cannot return air, and only the air with the dust in the room can be completely discharged and the exhaust gas is subjected to dust removal treatment.

Along with the continuous improvement of tabletting equipment, the existing tablet press can well control the dust dispersion in the tabletting process, and room air can keep good cleanliness, so that the room air can be subjected to return air treatment. However, the main means of controlling dust emission of the tablet press is that the tablet press is provided with a dust remover, and the dust remover always works in the working process of the tablet press, namely room air is discharged outside through the dust remover although the room does not need to be exhausted.

Although the clean air conditioning system of the clean room can maintain the air pressure in the clean room to a certain extent through frequency conversion and other means, if the power of the dust remover of the tablet press is large and exceeds the frequency conversion capability range of the air conditioning system, a large amount of air in the clean room can be discharged outdoors after the tablet press is started, so that the clean room cannot be maintained in an absolute positive pressure state, the risk that unclean air enters the clean area is increased, the risk that products are polluted is further caused, and the product quality is affected.

The quality of the medicine is derived from the design of the bottommost layer, and the quality of the product finally delivered to the hands of the consumer is necessarily realized through the control of details in the production process, and the quality of the final product is affected by the defects in the production process. Tablets are one of the most widespread pharmaceutical formulation types, and the tabletting operation in a clean room is taken as a necessary technological process for producing tablets, and ensuring that the production process strictly meets the requirements is one of the most urgent problems at present.

Therefore, we propose a linkage system of exhaust air and air supply for clean tablet room, so as to solve the above mentioned problems.

Disclosure of utility model

The utility model aims to provide a linkage system for exhausting and supplementing air in a clean tabletting room, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a linkage system for exhausting and supplementing air for a clean tablet press room, comprising: the clean air conditioning unit is provided with a coarse-effect fresh air section, a mixing section, a surface cooling section, a heating section, a humidifying section, a fan case, a flow equalizing section and a high-medium-effect air outlet section,

The coarse-effect fresh air section is connected with a fresh air pipe, the mixing section is communicated with the clean room through a return air pipe, and the high-medium-effect air outlet section is communicated with the clean room through an air supply pipe;

the tablet press is arranged in the clean room and is communicated with the dust remover through a pipeline;

the clean room is provided with a plurality of room air outlets which are communicated with the exhaust fan through a second exhaust pipe and a third exhaust pipe, and the second exhaust pipe is provided with a second electric air valve;

The dust remover is arranged in the auxiliary machinery room, the dust remover is communicated with a third exhaust pipe through a first exhaust pipe, and a first electric air valve is arranged on the first exhaust pipe;

The first electric air valve and the second electric air valve are interlocked and independently started.

Preferably, the new air pipe is provided with a first air door driver, the return air pipe is provided with a first temperature and humidity sensor, and the air supply pipe is provided with an air speed sensor and a second temperature and humidity sensor.

Preferably, a first differential pressure switch is arranged between the coarse-effect fresh air section and the mixing section, a second differential pressure switch is arranged between the mixing section and the surface cooling section, a third differential pressure switch is arranged on the fan case, and a fourth differential pressure switch is arranged between the flow equalizing section and the high-medium-effect air outlet section.

Preferably, the first electric air valve is connected with the third air door driver, and the second electric air valve is connected with the second air door driver.

Preferably, the exhaust fan is provided with a differential pressure sensor.

The linkage method of clean tabletting room exhaust and air supply comprises linkage of a tablet press and a dust remover and joint control of a sensor;

The linkage method of the tablet press and the dust remover specifically comprises the following steps:

The dust remover is started, the tablet press conveys dust gas to the dust remover through a pipeline, meanwhile, the first exhaust pipe is opened, the second exhaust pipe is closed, the dust remover is closed, the second exhaust pipe is opened, and the first exhaust pipe is closed;

the joint control of the sensor specifically comprises the following steps:

parameters such as temperature and humidity in a clean room, room pressure difference, air speed of an air supply pipe, a valve and the like are monitored in real time through a temperature and humidity sensor, an air speed sensor and a pressure difference sensor, data are transmitted to an upper control system, and the upper control system controls the starting and closing of an air door driver and a pressure difference switch according to settings, so that systematic combined control is realized.

Compared with the prior art, the utility model has the beneficial effects that:

When the tablet press starts, the dust remover starts synchronously, the electric air valve on the dust remover exhaust pipe is opened in a linkage way, the electric air valve on the clean room exhaust pipe is closed, room exhaust is switched into equipment exhaust, the total positive pressure air quantity of the room remains unchanged, the exhaust mode of the clean room can be switched in time in the start-stop process of the tablet press between the clean room, the total positive pressure air quantity of the room remains unchanged, the fluctuation of the air pressure in the clean room is reduced greatly, the risk that the product is possibly polluted is avoided, and the quality of the final product is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a clean air conditioning unit according to the present utility model;

Fig. 3 is a control flow chart of the present utility model.

In the figure: 1. a first temperature and humidity sensor; 2. a first damper driver; 3. a first differential pressure switch; 4. a rough fresh air section; 5. a mixing section; 6. a second differential pressure switch; 7. a surface cooling section; 8. a heating section; 9. a humidification section; 10. a fan case; 11. a third differential pressure switch; 12. a flow equalizing section; 13. a fourth pressure difference switch; 14. a high-medium-efficiency air outlet section; 15. a wind speed sensor; 16. a second temperature and humidity sensor; 17. a second damper driver; 18. a differential pressure sensor; 19. a third damper driver; 21. clean air conditioning unit; 22. a tablet press; 23. a dust remover; 24. a first exhaust duct; 25. room air outlet; 26. a second exhaust duct; 28. a pipe; 29. a new air pipe; 30. an air supply pipe; 31. an air return pipe; 32. a third exhaust duct; 33. an exhaust fan; 34. a clean room; 35. auxiliary machines; 71. a first electric damper; 72. and a second electric air valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: a linkage system for exhausting and supplementing air for a clean tablet press room, comprising: the clean air conditioning unit 21, the tablet press 22 and the dust remover 23, the clean air conditioning unit 21 is provided with a coarse effect fresh air section 4, a mixing section 5, a surface cooling section 7, a heating section 8, a humidifying section 9, a fan box 10, a flow equalizing section 12 and a high and medium effect air outlet section 14,

The rough-effect fresh air section 4 is connected with a fresh air pipe 29, and a first air door driver 2 is arranged on the fresh air pipe 29;

the mixing section 5 is communicated with a clean room 34 through a return air pipe 31, and a first temperature and humidity sensor 1 is arranged on the return air pipe 31;

The high-medium-efficiency air outlet section 14 is communicated with a clean room 34 through an air supply pipe 30, and an air speed sensor 15 and a second temperature and humidity sensor 16 are arranged on the air supply pipe 30;

a first differential pressure switch 3 is arranged between the coarse effect fresh air section 4 and the mixing section 5, and a second differential pressure switch 6 is arranged between the mixing section 5 and the surface cooling section 7;

the fan case 10 is provided with a third differential pressure switch 11;

A fourth pressure difference switch 13 is arranged between the flow equalizing section 12 and the high-medium-efficiency air outlet section 14;

The tablet press 22 is arranged in the clean room 34, and the tablet press 22 is communicated with the dust remover 23 through a pipeline 28;

The clean room 34 is provided with a plurality of room air outlets 25, the room air outlets 25 are communicated with an air exhaust fan 33 through a second air exhaust pipe 26 and a third air exhaust pipe 32, and a second electric air valve 72 is arranged on the second air exhaust pipe 26;

the dust remover 23 is arranged in the auxiliary machinery room 35, the dust remover 23 is communicated with the third exhaust pipe 32 through the first exhaust pipe 24, and the first exhaust pipe 24 is provided with a first electric air valve 71;

the first electric damper 71 and the second electric damper 72 are interlocked and individually started;

The first electric air valve 71 is connected with the third air door driver 19, and the second electric air valve 72 is connected with the second air door driver 17;

The exhaust fan 33 is provided with a differential pressure sensor 18.

Working principle: the rough-effect fresh air section 4 is connected with a fresh air pipe 29 to collect fresh air from the outside, the fresh air enters a clean air conditioning unit 21, and the fresh air is processed by a mixing section 5, a surface cooling section 7, a heating section 8, a humidifying section 9 and a fan case 10 in sequence to form clean air, and enters an air supply pipe 30 from a flow equalizing section 12 and a high-medium-effect air outlet section 14, and the air supply pipe 30 supplies the clean air into a clean room 34;

The return air pipe 31 returns the air of the clean room 34 to the clean air conditioning unit 21;

the air in the clean room 34 enters the second exhaust pipe 26 through the room exhaust outlet 25, and is exhausted outside through the exhaust fan 33;

the tablet press 22 is used for tablet forming of medicines, a large amount of dust is generated in the working process of the tablet press 22, dust-containing air enters a dust remover 23 of the tablet press through a pipeline 28, the dust is collected, and the air enters a first exhaust pipe 24 and is exhausted out of the room through an exhaust fan 33;

the first electric air valve 71 is linked with the start and stop of the dust remover 23, when the tablet press 22 works, the dust remover 23 is started, the first electric air valve 71 is also opened along with the start of the dust remover, so that the exhaust air of the dust remover 23 can be connected into the third exhaust pipe 32 through the first exhaust pipe 24, and then is exhausted out of the room through the exhaust fan 33, when the tablet press 22 does not work, the dust remover 23 is stopped, the dust remover 23 is not exhausted, and the first electric air valve 71 is also closed along with the start of the dust remover;

The first electric air valve 71 is interlocked with the second electric air valve 72, when the first electric air valve 71 is opened, the second electric air valve 72 is closed, the clean room 34 exhaust air is converted into the dust remover 23 exhaust air, when the second electric air valve 72 is opened, the first electric air valve 71 is closed, the dust remover 23 stops exhaust air, the clean room 34 exhaust air is converted into the clean room 34 exhaust air,

The automatic switching between the air exhaust of the clean room 34 and the air exhaust of the dust remover 23 is realized, the stability of the air exhaust of the clean room 34 is ensured, and under the condition of a certain air supply and return air quantity, the stable positive pressure air quantity of the clean room 34 is ensured, so that the stable positive pressure is maintained in the clean room.

A linkage method for exhaust air and air supplement of a clean tabletting room comprises the following steps:

The tablet press 22 and the dust remover 23 are linked;

Specifically, the dust remover 23 is started, the tablet press 22 conveys dust gas to the dust remover 23 through a pipeline 28, meanwhile, the first exhaust pipe 24 is opened, the second exhaust pipe 26 is closed, the dust remover 23 is closed, the second exhaust pipe 26 is opened, and the first exhaust pipe 24 is closed;

Parameters such as temperature and humidity, pressure difference, air supply speed and the like in the clean room 34 are maintained in a specified fluctuation range;

further, the room air outlet 25 of the clean room 34 is provided with electric air valves, which are opened only when the tablet press 22 does not work, the number and the size of the electric air valves of the room air outlet 25 can be set according to the actual air discharge quantity of the tablet press 22 and the dust remover 23, and the clean room 34 is also provided with other air outlets which are always open and independently exhaust air;

Joint control of the sensors;

specifically, parameters and equipment such as temperature and humidity in the clean room 34, room pressure difference, air speed of an air supply pipe, valves and the like are systematically and jointly controlled through a temperature and humidity sensor, an air door driver, a pressure difference switch, an air speed sensor and a pressure difference sensor, so that the high intelligent automation of the whole system is realized.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A linkage system for exhausting and supplementing air for a clean tablet press room, comprising: the novel air conditioner comprises a clean air conditioning unit (21), a tablet press (22) and a dust remover (23), wherein the clean air conditioning unit (21) is provided with a coarse-effect fresh air section (4), a mixing section (5), a surface cooling section (7), a heating section (8), a humidifying section (9), a fan case (10), a flow equalizing section (12) and a high-medium-effect air outlet section (14);

The method is characterized in that: the coarse-effect fresh air section (4) is connected with a fresh air pipe (29), the mixing section (5) is communicated with the clean room (34) through a return air pipe (31), and the high-medium-effect air outlet section (14) is communicated with the clean room (34) through an air supply pipe (30);

The tablet press (22) is arranged in the clean room (34), and the tablet press (22) is communicated with the dust remover (23) through a pipeline (28);

The cleaning room (34) is provided with a plurality of room air outlets (25), the room air outlets (25) are communicated with an exhaust fan (33) through a second exhaust pipe (26) and a third exhaust pipe (32), and a second electric air valve (72) is arranged on the second exhaust pipe (26);

The dust remover (23) is arranged in the auxiliary machinery room (35), the dust remover (23) is communicated with the third exhaust pipe (32) through the first exhaust pipe (24), and the first exhaust pipe (24) is provided with a first electric air valve (71);

The first electric air valve (71) and the second electric air valve (72) are interlocked and independently started;

a first air door driver (2) is arranged on the fresh air pipe (29), a first temperature and humidity sensor (1) is arranged on the return air pipe (31), and an air speed sensor (15) and a second temperature and humidity sensor (16) are arranged on the air supply pipe (30);

The novel air conditioner is characterized in that a first differential pressure switch (3) is arranged between the rough-effect fresh air section (4) and the mixing section (5), a second differential pressure switch (6) is arranged between the mixing section (5) and the surface cooling section (7), a third differential pressure switch (11) is arranged on the air conditioner case (10), and a fourth differential pressure switch (13) is arranged between the flow equalizing section (12) and the high-efficiency air outlet section (14).

2. A clean tablet room exhaust and make-up air linkage system according to claim 1, wherein the first electrically powered damper (71) is connected to a third damper drive (19) and the second electrically powered damper (72) is connected to a second damper drive (17).

3. The clean tabletting room exhaust and air supply linkage system according to claim 1, wherein the exhaust fan (33) is provided with a differential pressure sensor (18).