CN217855403U - Parallel freezing type dryer - Google Patents
Parallel freezing type dryer Download PDFInfo
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- CN217855403U CN217855403U CN202221730471.4U CN202221730471U CN217855403U CN 217855403 U CN217855403 U CN 217855403U CN 202221730471 U CN202221730471 U CN 202221730471U CN 217855403 U CN217855403 U CN 217855403U
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Abstract
The utility model provides a parallel freezing dryer, wherein an evaporation heat exchanger assembly comprises an evaporator, a heat recovery exchanger and a steam-water separator; the refrigerant inlets of the at least two refrigeration compressors are respectively connected with the refrigerant outlet of the gas-liquid separator, the inlet of the gas-liquid separator is connected with the refrigerant outlet of the evaporation heat exchanger assembly, and the outlets of the at least two refrigeration compressors are respectively connected with the inlet of the oil-gas separator; the outlet of the oil-gas separator is connected with the inlet of a water-cooled condenser, the refrigerant outlet of the water-cooled condenser is connected with an electronic expansion valve, and the liquid outlet of the electronic expansion valve is connected to the evaporation heat exchanger assembly; the electronic pressure switch detects the pressure of a liquid outlet of the evaporation heat exchanger assembly and the pressure of a liquid outlet of the refrigeration compressor; the pressure sensor detects the pressure of a refrigerant outlet of the refrigeration compressor; the electronic expansion valve is used for increasing the quantity of the refrigerant flowing into the evaporator when the pressure of the evaporation heat exchanger assembly is reduced; the dry filter is used for filtering moisture and particle impurities in the machine, and the floating ball drain valve is used for draining condensed water in the machine body.
Description
Technical Field
The utility model relates to a mechanical equipment especially relates to the desiccator.
Background
With the continuous development of industrial gas equipment, the gas consumption of the market is gradually increased, the gas displacement of a single air compression equipment is larger and larger, the user has larger and larger requirements on the post-processing equipment of compressed air with large processing capacity, and the refrigeration dryer with the conventional design can not completely meet the market requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that a parallel refrigeration dryer is provided adopts parallel compressor, improves complete machine treatment effeciency.
In order to solve the technical problem, the utility model provides a parallel refrigeration dryer, include: the system comprises a refrigeration compressor, an evaporation heat exchanger assembly, an electronic pressure switch, a pressure sensor, an electronic expansion valve, a drying filter, a floating ball drain valve, a thermocouple, a display and control integrated machine, a water-cooled condenser, a gas-liquid separator and an oil-gas separator; the evaporation heat exchanger assembly comprises an evaporator, a heat recovery exchanger and a steam-water separator;
the evaporation heat exchanger assembly comprises an evaporator, a heat recovery exchanger and a steam-water separator; the inlet of the refrigerating compressor is connected with the outlet of the refrigerant of the gas-liquid separator, the inlet of the gas-liquid separator is connected with the outlet of the refrigerant of the evaporation heat exchanger assembly, and the outlet of the refrigerating compressor is connected with the inlet of the oil-gas separator; the outlet of the oil-gas separator is connected with the inlet of a water-cooled condenser, the refrigerant outlet of the water-cooled condenser is connected with an electronic expansion valve, and the liquid outlet of the electronic expansion valve is connected to the evaporation heat exchanger assembly; the refrigerant is R410A;
the electronic pressure switch detects the pressure of a liquid outlet of the evaporation heat exchanger assembly and the pressure of a liquid outlet of the refrigeration compressor and is used for protecting the refrigeration compressor; the pressure sensor detects the pressure of a refrigerant outlet of the refrigeration compressor and is used for controlling the operation of the refrigeration compressor; the electronic expansion valve is used for increasing the quantity of the refrigerant flowing into the evaporator when the pressure of the evaporation heat exchanger assembly is reduced; the dry filter is used for filtering moisture and particle impurities in the machine, and the floating ball drain valve is used for draining condensed water in the machine body.
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
1. the utility model provides a parallel refrigerated dryer adopts the parallelly connected compressor of R410A refrigerant, can increase the efficiency of complete machine to when one of them compressor breaks down, the complete machine can also normal operating.
2. The utility model provides a parallel refrigeration dryer, the compressor of R410A refrigerant adopt synthetic oil POE or PVE, and the life-span of synthetic oil is longer than the mineral oil that R22 refrigerant compressor used, and R410A refrigerant compressor compares with model R22 refrigerant compressor volume will be little, and the refrigerating capacity will be good.
The utility model provides a parallel refrigeration dryer, precooler in the evaporation heat exchanger assembly adopts the heat transfer area in the unit volume of plate-fin heat exchanger big with the evaporimeter, and heat exchange efficiency is high, and whole overall dimension is little.
4. The utility model provides a parallel freezing formula desiccator, through electronic type pressure switch monitoring refrigerating system's stability, guarantee leak, the condensation effect is poor, under the condition of electronic expansion valve trouble, all contacts of automatic disconnection to send alarm signal, freezing formula desiccator can't start.
5. The utility model provides a parallel freezing formula desiccator, throttle structure adopt electronic expansion valve, utilize the accurate characteristics of adjusting of electronic expansion valve accessible feedback, when the product gas pressure dew point can not reach the requirement promptly, through control increase electronic expansion valve's aperture or reduce electronic expansion valve's aperture to increase or reduce the refrigerant volume that flows into the evaporimeter.
6. The utility model provides a parallel freezing formula desiccator utilizes moisture and particle impurity among the drier-filter filtration system, clears away the danger that acid material formed. And the water in the system is discharged at regular time by using the floating ball drain valve. And because the electronic expansion valve has controllable adjustability, a hot gas bypass valve can be omitted, so that the system is simpler and more reliable.
7. The utility model provides a parallel freezing formula desiccator, when the aperture through adjusting electronic expansion valve still can not satisfy the demand when the operating mode changes, the control through closing or opening compressor makes the compressor increase in quantity or the reduction that is in operating condition in the parallel compressor system to reach the regulation of refrigerating output size, in order to satisfy the operating mode.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
fig. 2 is another perspective view of the preferred embodiment of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be a wall-mounted connection, a detachable connection, or an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific case.
Referring to fig. 1 and 2, the present embodiment provides a parallel type freeze dryer including: the system comprises two refrigeration compressors 1, an evaporation heat exchanger assembly 2, an electronic pressure switch 3, a pressure sensor 4, an electronic expansion valve 5, a drying filter 6, a floating ball drain valve 7, a thermocouple 8, a display and control integrated machine 9, a water-cooled condenser 10, a gas-liquid separator 11 and an oil-gas separator 12; the evaporation heat exchanger assembly comprises an evaporator, a heat recovery exchanger and a steam-water separator;
the evaporation heat exchanger assembly 2 comprises an evaporator, a heat recovery exchanger and a steam-water separator; refrigerant inlets of the two refrigeration compressors 1 are respectively connected with a refrigerant outlet of the gas-liquid separator 11, an inlet of the gas-liquid separator 11 is connected with a refrigerant outlet of the evaporation heat exchanger assembly 2, and outlets of the two refrigeration compressors 1 are respectively connected with an inlet of the oil-gas separator 12; the outlet of the oil-gas separator 12 is connected with the inlet of the water-cooled condenser 10, the refrigerant outlet of the water-cooled condenser 10 is connected with the electronic expansion valve 5, and the liquid outlet of the electronic expansion valve 5 is connected to the evaporation heat exchanger 2 assembly;
the electronic pressure switch 3 detects the pressure of a liquid outlet of the evaporation heat exchanger assembly 2 and the pressure of a liquid outlet of the refrigeration compressor 1 and is used for protecting the refrigeration compressor 1; the pressure sensor 4 detects the pressure of the refrigerant outlet of the refrigeration compressor 1 and is used to control the operation of the refrigeration compressor 1; the electronic expansion valve 5 is used for increasing the quantity of the refrigerant flowing into the evaporation heat exchanger assembly 2 when the pressure of the evaporation heat exchanger assembly 2 is reduced; the dry filter 6 is used for filtering moisture and particle impurities in the machine, and the floating ball drain valve 7 is used for draining condensed water in the machine body;
the refrigeration compressor 1 sucks the low-temperature and low-pressure refrigerant of the evaporation heat exchanger assembly 2 into a cylinder of the refrigeration compressor 1, and the pressure and the temperature of the refrigerant vapor are simultaneously increased after the refrigerant vapor is compressed; the refrigerant vapor of high pressure and high temperature is pressed to the water-cooled condenser 10, in which the refrigerant vapor of high temperature exchanges heat with cooling water or air of relatively low temperature, and the heat of the refrigerant is taken away by the water or air to be condensed, and the refrigerant vapor becomes liquid.
The part of liquid is conveyed to an electronic expansion valve, is expanded and contracted into low-temperature and low-pressure liquid and enters an evaporator; the low-temperature and low-pressure refrigerant liquid in the evaporator absorbs the heat of the compressed air to be vaporized (commonly called as 'evaporation'), and the compressed air is condensed into a large amount of liquid water after being cooled; refrigerant vapor in the evaporator is sucked by the refrigerant compressor 1, so that the refrigerant undergoes four processes of compression, condensation, throttling and evaporation in the system, thereby completing a cycle.
The parallel freezing type dryer adopts the R410A refrigerant parallel type refrigeration compressor 1, the refrigeration compressor 1 of the R410A refrigerant is controlled by the display and control integrated machine, and the display and control integrated machine is controlled by the display and control integrated machine to be higher in action reliability and more intelligent in machine compared with the traditional single-chip microcomputer control or no control. Meanwhile, the control principle of the design is that automatic adjustment is carried out according to the actual quality of the finished gas, and compared with the traditional single chip microcomputer control or the non-control, the energy-saving and environment-friendly effects are achieved, the quality of the finished gas is more stable and more meets the actual requirements of customers, and the problems of failure and poor performance caused by working condition change of the fixed-frequency control are effectively solved.
In addition, the stability of the refrigerating system is monitored through the electronic pressure switch 3, all contacts are automatically disconnected under the condition of poor leakage and condensation effects, an alarm signal is sent, and the freezing type dryer cannot be started. The safe operation of the refrigerant compressor 1 is protected by the pressure sensor 4. Moreover, the electronic expansion valve 5 is adopted in the throttling structure, and the electronic expansion valve 5 has the characteristic of accurate adjustment, namely, when the evaporation pressure is reduced, the pressure difference between two ends is correspondingly increased, so that the amount of the refrigerant flowing into the evaporator is increased.
Finally, the filter drier 6 is used to filter the moisture and particulate impurities in the system, and the danger of the formation of acidic substances is clear. The water in the system is discharged at regular time by using the floating ball water discharge valve 7.
The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.
Claims (2)
1. A parallel refrigerated dryer, characterized in that includes: the system comprises at least two refrigeration compressors, an evaporation heat exchanger assembly, an electronic pressure switch, a pressure sensor, an electronic expansion valve, a drying filter, a floating ball drain valve, a thermocouple, a display and control integrated machine, a water-cooled condenser, a gas-liquid separator and an oil-gas separator; the evaporation heat exchanger assembly comprises an evaporator, a heat recovery exchanger and a steam-water separator;
the evaporation heat exchanger assembly comprises an evaporator, a heat recovery exchanger and a steam-water separator; the refrigerant inlets of the at least two refrigeration compressors are respectively connected with the refrigerant outlet of the gas-liquid separator, the inlet of the gas-liquid separator is connected with the refrigerant outlet of the evaporation heat exchanger assembly, and the outlets of the at least two refrigeration compressors are respectively connected with the inlet of the oil-gas separator; the outlet of the oil-gas separator is connected with the inlet of a water-cooled condenser, the refrigerant outlet of the water-cooled condenser is connected with an electronic expansion valve, and the liquid outlet of the electronic expansion valve is connected to the evaporation heat exchanger assembly;
the electronic pressure switch detects the pressure of a liquid outlet of the evaporation heat exchanger assembly and the pressure of a liquid outlet of the refrigeration compressor; the pressure sensor detects the pressure of a refrigerant outlet of the refrigeration compressor; the electronic expansion valve is used for increasing the quantity of the refrigerant flowing into the evaporator when the pressure of the evaporation heat exchanger assembly is reduced; the dry filter is used for filtering moisture and particle impurities in the machine, and the floating ball drain valve is used for draining condensed water in the machine body.
2. A parallel freeze dryer according to claim 1, wherein: the refrigerant is R410A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221730471.4U CN217855403U (en) | 2022-07-06 | 2022-07-06 | Parallel freezing type dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221730471.4U CN217855403U (en) | 2022-07-06 | 2022-07-06 | Parallel freezing type dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217855403U true CN217855403U (en) | 2022-11-22 |
Family
ID=84099630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221730471.4U Active CN217855403U (en) | 2022-07-06 | 2022-07-06 | Parallel freezing type dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217855403U (en) |
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2022
- 2022-07-06 CN CN202221730471.4U patent/CN217855403U/en active Active
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