CN202942799U

CN202942799U - Structurally improved freezing drier

Info

Publication number: CN202942799U
Application number: CN 201220500731
Authority: CN
Inventors: 简明堃
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-05-22
Anticipated expiration: 2022-09-28

Abstract

The utility model discloses a structurally improved freezing drier which comprises a refrigerant pipeline, wherein the refrigerant pipeline is serially connected with an evaporator, a compressor, a condenser and an expansion valve; an air inlet is formed in the front end of the evaporator; a gas-water separator is arranged at the back end of the evaporator; the gas-water separator is used for separating a gas which is cooled by the evaporator into cold air and low temperature cooling water; the cold air and the low temperature cooling water are further respectively discharged out through a gas supply pipeline and a water discharge pipeline; a refrigerant flowing space is arranged inside the condenser; more than one internal pipe which is connected with the water discharge pipeline is arranged in the refrigerant flowing space; and in this way, the heat exchange can be carried out by utilizing the low temperature cooling water separated by the gas-water separator and the refrigerant flowing through the condenser. By utilizing the structurally improved freezing drier, the heat exchanger efficiency can be greatly improved, and furthermore the load of the compressor is effectively reduced, so that the effects of prolonging the service life of the compressor and saving the power are achieved; and moreover the heat exchange efficiency is greatly improved, the load of the compressor is effectively reduced, and therefore the effects of prolonging the service life of the compressor and saving the power are achieved.

Description

A kind of structure improved freeze drier

Technical field

The utility model is relevant with freeze drier, espespecially a kind ofly can significantly promote heat exchange usefulness, and can effectively reduce the structure improved freeze drier that greenhouse effects produce.

Background technology

Freeze drier commonly used is mainly by refrigerant pipeline series connection one evaporimeter, a compressor, a condenser and an expansion valve, to consist of a heat-exchange system, and be used in and be provided with a moisture trap in evaporimeter, and can be with through being separated by the evaporimeter airborne aqueous vapor of condensing again after condenser heating, to obtain dry cold air.

But, the cooling devices such as the fan that the most utilization of condenser of general freeze drier is additionally set up or cooling tower, and can carry out heat exchange to the refrigerant in condenser, yet not only can produce audible noise during fan running, and itself and condenser carry out the hot-air (greenhouse gases) of discharging after heat exchange, also can cause greenhouse effects and cause global warming, moreover the cooling heat exchanger effectiveness of reaching is also not ideal enough indirectly to utilize fan.

And cooling tower not only can cause the overall volume of freeze drier significantly to increase on setting up, also must consider the mode of establishing that connects of its cooling line when setting up, and the suitable consumption that arranges of cooling tower takes up space, and must be extra cooling water source is provided, so its setup cost is higher.

Summary of the invention

One of the utility model purpose is to provide a kind of structure improved freeze drier, and it has can significantly promote heat exchange usefulness, and and then can effectively reduce compressor load, thereby reach the effect that extends compressor service life and power saving.

Another purpose of the present utility model is to provide a kind of structure improved freeze drier, and it has can effectively reduce the effect that greenhouse effects produce.

for reaching aforesaid purpose, the utility model provides a kind of lyophilizer structure-improved, mainly by refrigerant pipeline series connection one evaporimeter, one compressor, one condenser and an expansion valve, to consist of a refrigerant circulation circuit, this evaporimeter is the hollow shelly, and be provided with an air inlet in this evaporimeter front end, the rear end is provided with a moisture trap, this moisture trap has an outward extending supply air line and a discharge pipe line, and undertaken lowering the temperature after heat exchange by the refrigerant of this air inlet gas that enters this evaporimeter and this evaporimeter of flowing through, isolate cold air and low-temperature cooling water through this moisture trap, cold air is along this supply air line output, low-temperature cooling water enters in this discharge pipe line, and this condenser inside has a refrigerant free air space, and be provided with at this refrigerant free air space the inner tube that is connected with this discharge pipe line more than, make the low-temperature cooling water that enters this inner tube through this discharge pipe line, can carry out heat exchange in order to the refrigerant with this condenser of flowing through.

Further, the air inlet of this evaporimeter also joins with a preheating unit, after making the gas that enters in this evaporimeter first be subjected to the heating of this preheating unit, then enters in this evaporimeter through this air inlet.

Preferably, this refrigerant free air space is provided with a plurality of screens that staggered interval arranges that are.

Preferably, this condenser has a refrigerant entrance, a refrigerant exit, a cooling water inlet and a coolant outlet, this refrigerant entrance and this refrigerant exit communicate with the refrigerant free air space of this condenser inside respectively, and this cooling water inlet communicates with this each inner tube one end and this discharge pipe line respectively, this coolant outlet communicates with the other end of this each inner tube, and be provided with a pressure-control valve at this coolant outlet, this pressure-control valve can be in order to detecting the refrigerant pressure in this refrigerant free air space, and determine according to this opening and closing time of this coolant outlet.

The utlity model has following advantage: can significantly promote heat exchange usefulness, and and then effectively reduce compressor load, thereby reach the effect that extends compressor service life and power saving, and can significantly promote heat exchange usefulness, and and then can effectively reduce compressor load, thereby reach the effect that extends compressor service life and power saving.

Description of drawings

Fig. 1 is structural representation of the present utility model

Fig. 2 is the flow circuit diagram of the utility model refrigerant circulation circuit

The flow circuit diagram of its gas and cryogenic condensation water when Fig. 3 is the utility model use

The specific embodiment:

At first, please arrange in pairs or groups and consult Fig. 1, the utility model provides a kind of structure improved freeze drier, mainly by refrigerant pipeline 11 series connection one evaporimeters 21, a compressor 31, a condenser 41 and an expansion valve 51, to consist of a refrigerant circulation circuit, wherein:

this evaporimeter 21 is the hollow shelly, and the refrigerant pipeline 11 that is positioned at this evaporimeter 21 inside is continuous bending, and be provided with a heat-conducting piece 12 in refrigerant pipeline 11 outsides that are positioned at this evaporimeter 21 inside, separately be provided with an air inlet 22 at these evaporimeter 21 front ends, the rear end is provided with a moisture trap 23, and this moisture trap 23 has an outward extending supply air line 231 and a discharge pipe line 232, and can be carried out with the refrigerant of this evaporimeter 21 of flowing through lowering the temperature after heat exchange by the gas that this air inlet 22 enters this evaporimeter 21, and isolate cold air and low-temperature cooling water through this moisture trap 23, cold air can use along these supply air line 231 outputs, low-temperature cooling water enters in this discharge pipe line 232.In the present embodiment, the air inlet 22 of this evaporimeter 21 also joins with a preheating unit 24, after making the gas that enters in this evaporimeter 21 first be subjected to the heating of this preheating unit 24, enter in this evaporimeter 21 through this air inlet 22, wherein this preheating unit 24 can utilize electric heating or heat exchange method to carry out a heating action to the gas that enters again.

this condenser 41 is the hollow shelly, its inside has a refrigerant free air space 42, and be provided with a plurality of inner tubes 43 that do not communicate with this refrigerant free air space 42 in this refrigerant free air space 42, and a plurality of screens 44 that are the setting of staggered interval, and this condenser 41 has a refrigerant entrance 411, one refrigerant exit 412, one cooling water inlet 413 and a coolant outlet 414, this refrigerant entrance 411 and this refrigerant exit 412 communicate with the refrigerant free air space 42 of this condenser 41 inside respectively, and this cooling water inlet 413 is respectively with respectively these inner tube 43 1 ends and this discharge pipe line 232 communicate, 414 of this coolant outlets communicate with the other end of this inner tube 43 respectively, make the low-temperature cooling water in this discharge pipe line 232 must be in this cooling water inlet 413 enters respectively this inner tube 43.In the present embodiment, this coolant outlet 414 is provided with a pressure-control valve 45, and this pressure-control valve 45 can be in order to detecting the refrigerant pressure in this refrigerant free air space 42, and determine according to this opening and closing time of this coolant outlet 414.

And as shown in Figure 2, the utility model is when this compressor 31 actual operation, utilize these compressor 31 compressions to produce the gaseous coolant of HTHP, flow into this condenser 41 and condense into the liquid refrigerants of temperature in high pressure because of heat extraction, again after this expansion valve 51 reduces pressure into the liquid refrigerants of low-pressure low-temperature, flow into the interior absorption heat energy of this evaporimeter 21 and flash to the gaseous coolant of low-pressure low-temperature, then being sucked to consist of a refrigerant circulation circuit by this compressor 31 again.

then please continue collocation and consult Fig. 3, by above-mentioned refrigerant circulation circuit, make the gas that enters again after the heating that is subjected to this preheating unit 24 in this evaporimeter 21, can with this evaporimeter 21 in refrigerant carry out heat exchange and with the cooling, then the air separation of condensing through this evaporimeter 21 can be gone out cold air and low-temperature cooling water with this moisture trap 23, cold air will discharge for use along the supply air line 231 of this moisture trap 23, low-temperature cooling water is along the discharge pipe line 232 of this moisture trap 23, cooling water inlet 413 by this condenser 41, enter again in respectively this inner tube 43 in this condenser 41, and thus can with these condenser 41 refrigerant free air spaces 42 of flowing through in refrigerant carry out heat exchange.

and the heat exchange action that the utility model utilizes 23 isolated moisture content of this moisture trap to condense through this evaporimeter 21 equally, therefore can have lower water temperature (approximately 8～10 ℃), and utilize this discharge pipe line 232 that 23 isolated low-temperature cooling waters of this moisture trap are reclaimed in each inner tube 43 that imports this condenser 41, and be provided with a plurality of screens 44 that are the interleaved setting in the refrigerant free air space 42 by this condenser 41, be arranged in the time that the refrigerant of this refrigerant free air space 42 contacts with each inner tube 43 with increase, and can significantly promote its heat exchanger effectiveness, and can effectively reduce thus the load of this compressor 31, thereby reach the effect that extends this compressor service life and power saving.

Separately, the utility model utilizes 23 isolated low-temperature cooling waters of this moisture trap, and carry out heat exchange action in order to the refrigerant with these condenser 41 refrigerant free air spaces 42 of flowing through, it not only has recycling and meets the environmental protection concept, need not additionally provide cooling water source more thus, and the utility model also need not additionally set up other cooling devices, the effect of refrigerant in this condenser 41 of effective cooling be can reach, the volume of freeze drier and the advantage that can effectively reduce its deployment cost therefore more can be effectively reduced; Moreover, because the low-temperature cooling water in these condenser 41 inner tubes 43 of input has the characteristic of low temperature, even therefore with this condenser 41 in refrigerant carry out the heat exchange heat absorption after, when being discharged by this coolant outlet 414 through these pressure-control valve 45 controls again, still can maintain normal temperature (approximately 30 ℃) state, thereby can effectively avoid environment is caused greenhouse effects, and meet various countries for the regulation of greenhouse gas emissions.

Claims

1. structure improved freeze drier, mainly by refrigerant pipeline series connection one evaporimeter, one compressor, one condenser and an expansion valve, to consist of a refrigerant circulation circuit, it is characterized in that: described evaporimeter is the hollow shelly, and be provided with an air inlet in described evaporimeter front end, the rear end is provided with a moisture trap, described moisture trap has an outward extending supply air line and a discharge pipe line, and undertaken lowering the temperature after heat exchange by the refrigerant of described the air inlet gas that enters described evaporimeter and the described evaporimeter of flowing through, isolate cold air and low-temperature cooling water through described moisture trap, cold air is along this supply air line output, low-temperature cooling water enters in this discharge pipe line, and described condenser inside has a refrigerant free air space, and be provided with in this refrigerant free air space the inner tube that is connected with described discharge pipe line more than, make the low-temperature cooling water that enters described inner tube through described discharge pipe line, can carry out heat exchange in order to the refrigerant with this condenser of flowing through.

2. structure improved freeze drier as claimed in claim 1, it is characterized in that: the air inlet of described evaporimeter also joins with a preheating unit, after making the gas that enters in described evaporimeter can first be subjected to described preheating unit heating, then enter in described evaporimeter through described air inlet.

3. structure improved freeze drier as claimed in claim 1 is characterized in that: described refrigerant free air space is provided with a plurality of screens that staggered interval arranges that are.

4. structure improved freeze drier as claimed in claim 1, it is characterized in that: described condenser has a refrigerant entrance, a refrigerant exit, a cooling water inlet and a coolant outlet, this refrigerant entrance and described refrigerant exit communicate with the refrigerant free air space of described condenser inside respectively, and described cooling water inlet communicates with described each inner tube one end and this discharge pipe line respectively, and described coolant outlet communicates with the other end of described each inner tube.

5. structure improved freeze drier as claimed in claim 4, it is characterized in that: described coolant outlet is provided with a pressure-control valve, described pressure-control valve can be in order to detecting the refrigerant pressure in described refrigerant free air space, and determine according to this opening and closing time of this coolant outlet.