CN113803965A

CN113803965A - Be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure defrosting device

Info

Publication number: CN113803965A
Application number: CN202110998782.2A
Authority: CN
Inventors: 蒋光明
Original assignee: Shaoxing Wolai Food Machinery Co ltd
Current assignee: Shaoxing Wolai Food Machinery Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2021-12-17

Abstract

A multi-cold-trap water-spreading and normal-pressure defrosting device applied to freeze-drying equipment belongs to the technical field of cold-trap equipment; including vacuum tank and defrosting pond, its characterized in that: one side of the vacuum tank is connected with a vacuum pump, a pressure air pipe is arranged between the vacuum pump and the vacuum tank, the vacuum pump and the vacuum tank are connected with each other through the pressure air pipe, and a plurality of groups of cold trap chambers are arranged between the vacuum tank and the defrosting pond; the invention can mutually convert the corresponding cold trap chambers by arranging a plurality of groups of cold trap chambers, connecting the cold trap chambers with the vacuum tank through a plurality of upper air branch pipes, connecting the cold trap chambers with the defrosting tank through a plurality of upper water branch pipes, arranging a vacuum pump on each upper air branch pipe, arranging a water inlet valve on each upper water branch pipe, and respectively arranging control valves correspondingly, thereby improving the practicability of the whole freeze dryer.

Description

Be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure defrosting device

Technical Field

The invention belongs to the technical field of cold trap equipment, and particularly relates to a multi-cold-trap water-spreading and normal-pressure defrosting device applied to freeze-drying equipment.

Background

The basic principle of freeze-drying is based on the tri-state change of water. The water has solid state, liquid state and gaseous state, and the three states can be mutually converted and coexist. When water is at the triple point (the temperature is 0.01 ℃, and the vapor pressure is 610.5Pa), the water, the ice and the vapor can coexist and balance with each other, and under the high vacuum state, the water in the pre-frozen material is directly sublimated into the vapor in the ice state to be removed by utilizing the sublimation principle without melting the ice, thereby achieving the aim of freeze drying.

The freeze-drying equipment is generally matched with one cold trap chamber to work under the use state, but once the freeze-drying equipment works in an overload mode, the frost removing treatment is carried out on the cold trap chamber within a required time, so that the freeze-drying equipment cannot work at high power for a long time, the working efficiency is greatly reduced, and high cost is caused by the arrangement of a plurality of cold trap devices and is not very cost-effective.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a multi-cold-trap water-spreading and normal-pressure defrosting device applied to freeze-drying equipment.

The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure and change white device, includes vacuum tank and changes white pond, its characterized in that: one side of the vacuum tank is connected with a vacuum pump, a pressure air pipe is arranged between the vacuum pump and the vacuum tank, the vacuum pump and the vacuum tank are connected with each other through the pressure air pipe, and a plurality of groups of cold trap chambers are arranged between the vacuum tank and the defrosting pond.

Preferably, the output end of the vacuum tank is connected with an upper air main pipe, one end of the upper air main pipe is sleeved with a first four-way, upper air branch pipes are inserted into the other three channels of the first four-way, the other ends of the upper air branch pipes extend to the cold trap chambers on one side and are connected with the corresponding cold trap chambers one by one, and vacuum valves are arranged on the upper air branch pipes.

Preferably, a main water supply pipeline is arranged on one side of the defrosting tank, a second cross is sleeved at the output end of the main water supply pipeline, a water outlet pump is arranged on the main water supply pipeline, the other three channel ports of the second cross are all connected with water supply branch pipes in an inserting mode, and a water inlet valve is arranged on each water supply branch pipe.

Preferably, a liquid supply pipe and a return pipe are respectively connected between the multiple groups of cold trap chambers, the interiors of the multiple cold trap chambers are mutually communicated through the liquid supply pipe and the return pipe, a single cold trap chamber is respectively provided with an air supply valve and a drain valve, and the drain valves below the multiple cold trap chambers are positioned above the defrosting pond.

The invention has the following beneficial effects: through setting up multiunit cold trap room, a plurality of cold trap rooms divide union coupling through a plurality of gas of going up with the vacuum tank, a plurality of cold trap rooms with change between the frost pond and be connected through a plurality of moisture pipes of going up, and all be provided with the vacuum pump on gas branch pipe on every, all be provided with the water intaking valve on every moisture pipe of going up, through the valve that corresponds respectively and be provided with the control, thereby the cold trap room that can interconversion correspond, the practicality of whole freeze dryer has been improved, and its availability factor has been improved simultaneously, the drain valve of cold trap room is unified to the income of the water after freezing of inside exhaust change simultaneously and is changed the frost pond inside, thereby increase the utilization of water resource.

Drawings

FIG. 1 is a block diagram of an apparatus of the present invention.

In the figure: 2. a cold trap chamber; 21. a liquid supply tube; 22. a return pipe; 23. an air supply valve; 24. a drain valve; 3. A vacuum tank; 31. a vacuum valve; 32. a vacuum pump; 33. pressing the air pipe; 34. an upper gas main pipe; 35. feeding air into the branch pipe; 36. a vacuum tank; 4. a defrosting pool; 41. a water outlet main pipe; 42. a control valve; 43. discharging the water pump; 44. A water supply main pipeline; 45. feeding a water distributing pipe; 46. a second cross; 47. a water inlet valve.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): the utility model provides a be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure defrosting device, as shown in figure 1, includes vacuum tank 3 and defrosting pond 4, its characterized in that: one side of a vacuum tank 3 is connected with a vacuum pump 32, a pressure air pipe 33 is arranged between the vacuum pump 32 and the vacuum tank 3, the vacuum pump 32 and the vacuum tank 3 are connected with each other through the pressure air pipe 33, a plurality of groups of cold trap chambers 2 are arranged between the vacuum tank 3 and a defrosting tank 4, the output end of the vacuum tank 3 is connected with an upper air main pipe 34, one end of the upper air main pipe 34 is sleeved with a first four-way joint 36, upper air branch pipes 35 are all inserted in the other three channels of the first four-way joint 36, the other ends of the upper air branch pipes 35 extend to the cold trap chambers 2 on one side and are connected with the corresponding cold trap chambers 2 one by one, vacuum valves 31 are arranged on the upper air branch pipes 35, a water supply main pipe 44 is arranged on one side of the defrosting tank 4, the output end of the water supply main pipe 44 is sleeved with a second four-way joint 46, a water outlet pump 43 is arranged on the water supply main pipe 44, water inlet valves 45 are all arranged on the other three channel ports of the second four-way joint 46, each water supply branch pipe 45 is provided with a water supply pipe 47, a liquid supply pipe 21 and a return pipe 22 are respectively connected between the multiple groups of cold trap chambers 2, the multiple groups of cold trap chambers 2 are mutually communicated through the liquid supply pipe 21 and the return pipe 22, an air supply valve 23 and a drain valve 24 are respectively arranged on the single cold trap chamber 2, and the drain valve 24 below the multiple groups of cold trap chambers 2 is positioned above the defrosting pond 4.

The principle of the invention is as follows: the cold trap chambers 2 are connected with the vacuum tank 3 and are connected through the upper gas branch pipes 35, each upper gas branch pipe 35 is controlled by a vacuum valve 31 and is used for switching the use of different cold trap chambers 2, the efficiency of the freeze dryer can be effectively improved, when a coil (water eliminator) in one cold trap needs defrosting, one of the vacuum valves 31 is closed, the air replenishing valve 23 on the corresponding cold trap chamber 2 is opened, the drain valve 24 is opened, the water in the defrosting pond 4 is heated before the water is heated, the water inlet valve 47 is opened, the water pump is opened, hot water is directly sprayed into a defrosting coil in the cold trap chamber 2, the defrosting purpose is achieved, when a single cold trap chamber 2 is defrosted, the other cold trap chambers 2 can still work, the corresponding pipelines are heard for independent work, and the defrosting mode does not influence the normal use of the freeze dryer (vacuum tank 3), the waiting time between batches of the freeze dryer can be reduced to zero, the production plan arrangement before use is greatly facilitated, the practical time of the freeze dryer is prolonged, the production efficiency is improved, the device also improves the utilization rate of water, and the water resource is saved.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure and change white device, includes vacuum tank (3) and changes white pond (4), its characterized in that: one side of vacuum tank (3) is connected with vacuum pump (32), be provided with between vacuum pump (32) and vacuum tank (3) air pressing pipe (33), through air pressing pipe (33) interconnect between vacuum pump (32) and vacuum tank (3), be provided with multiunit cold trap room (2) between vacuum tank (3) and defrosting pond (4).

2. The multi-cold-trap water-spreading and normal-pressure defrosting device applied to the freeze-drying equipment according to claim 1, characterized in that: the output end of the vacuum tank (3) is connected with an upper air main pipe (34), one end of the upper air main pipe (34) is sleeved with a first four-way pipe (36), the other three channels of the first four-way pipe (36) are all spliced with upper air branch pipes (35), the other ends of the upper air branch pipes (35) extend to the cold trap chambers (2) on one side and are connected with the corresponding cold trap chambers (2) one by one, and vacuum valves (31) are arranged on the upper air branch pipes (35).

3. The multi-cold-trap water-spreading and normal-pressure defrosting device applied to the freeze-drying equipment according to claim 1, characterized in that: one side of the defrosting tank (4) is provided with a water feeding main pipeline (44), the output end of the water feeding main pipeline (44) is sleeved with a second four-way pipe (46), a water outlet pump (43) is arranged on the water feeding main pipeline (44), the other three channel ports of the second four-way pipe (46) are all inserted with water feeding pipes (45), and each water feeding pipe (45) is provided with a water inlet valve (47).

4. The multi-cold-trap water-spreading and normal-pressure defrosting device applied to the freeze-drying equipment according to claim 1, characterized in that: be connected with liquid supply pipe (21) and back flow (22) between multiunit cold trap room (2) respectively, and a plurality of cold trap rooms (2) are inside to communicate each other through liquid supply pipe (21) and back flow (22), singly be provided with aeration valve (23) and drain valve (24) on cold trap room (2) respectively, drain valve (24) of a plurality of cold trap room (2) below are located the top of changing white pond (4).