CN204100758U - A kind of northern dedicated for heat pump Drying unit - Google Patents
A kind of northern dedicated for heat pump Drying unit Download PDFInfo
- Publication number
- CN204100758U CN204100758U CN201420593813.1U CN201420593813U CN204100758U CN 204100758 U CN204100758 U CN 204100758U CN 201420593813 U CN201420593813 U CN 201420593813U CN 204100758 U CN204100758 U CN 204100758U
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- China
- Prior art keywords
- drying unit
- heat pump
- pump drying
- compressor
- evaporimeter
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Abstract
The utility model discloses a kind of northern dedicated for heat pump Drying unit, it is characterized in that: comprise the first heat pump drying unit and the second heat pump drying unit; The refrigerant adopted in the first described heat pump drying unit is R134a; The refrigerant that the second described heat pump drying unit adopts is R410a; The first described evaporimeter is connected with the second condenser, is supplied to the first heat pump drying unit ensures that the first heat pump drying unit normally works by the second heat pump drying unit from lower environment temperature draw heat.Northern dedicated for heat pump Drying unit described in the utility model, by being provided with the first heat pump drying unit and the second heat pump drying unit, be supplied to the first heat pump drying unit by the second heat pump drying unit from lower environment temperature draw heat and ensure that the first heat pump drying unit normally works, effectively ensure that the normal work of whole Drying unit, there is the advantage such as working stability, good reliability.
Description
Technical field
The utility model relates to art of heat pumps, particularly the northern dedicated for heat pump Drying unit of one.
Background technology
Dry technology is widely used in the various fields of social production, and the heat of existing drying plant is mainly derived from fire coal, fuel oil or heating wire, has the shortcomings such as energy consumption is high, cost is large.
Air source heat pump is primarily of part compositions such as compressor, evaporimeter, throttling arrangement, condensers.It is according to inverse Carnot cycle principle, and adopt electric energy shortcoming, by conducting heat, public matter effectively absorbs the low grade heat energy that cannot be utilized in air, and is promoted to available high-grade heat energy and is used.Its course of work is: 1) heat-transfer working medium enters evaporimeter, and work heat absorption evaporation in evaporimeter, and now working medium enters compressor absorb heat from low-temperature heat source after; 2) working medium is after the compression, intensification of compressor, becomes the working medium discharge compressor of high temperature, high pressure; 3) working medium enters condenser, and the part heat producing can only to by evaporimeter the heat absorbed and the power consumption of compressor own within the condenser passes to other media; 4) high-pressure working medium again enters evaporimeter after throttling arrangement reducing pressure by regulating flow, with this constantly periodic duty.
In order to system long-term stability is run, heat pump also comprises the servicing unit of a few thing, as fluid reservoir, gas-liquid separator, filter etc.During using air source heat pump as heat source air oxygen detrition material, require that circulated air heats its air outlet wind-warm syndrome higher, efficient drying could be carried out to material, carry out suitability for industrialized production.But it is limited to be limited to device heating efficiency, particularly when northern temperature is extremely low, existing heat pump drying unit cannot obtain enough heats from environment, and then cannot adapt to the requirement of dried material.
Summary of the invention
For the problems referred to above, it is strong that the purpose of this utility model is to provide a kind of heating efficiency, and heat exchange efficiency is high, can obtain the northern dedicated for heat pump Drying unit of enough heats from extremely low temperature.
For achieving the above object, the technical scheme that the utility model proposes is: a kind of northern dedicated for heat pump Drying unit, is characterized in that: comprise the first heat pump drying unit and the second heat pump drying unit;
The first described heat pump drying unit comprises the first compressor, the first condenser, the first fluid reservoir, the first filter, the first main heating power expansion valve, the first evaporimeter and the first gas-liquid separator, also be provided with the first compressor making-up air device between the first described compressor and the first fluid reservoir, the first described compressor making-up air device comprises the first jet expansion valve, the first plate type heat exchanger, the first magnetic valve and the second magnetic valve, the first capillary; The first described magnetic valve and the second magnetic valve are in parallel, the first described magnetic valve is in series with the first capillary, the first plate type heat exchanger successively, the second described magnetic valve is in series with the first jet expansion valve and the first plate type heat exchanger successively, the first described compressor is provided with tonifying Qi entrance, and the first described plate type heat exchanger is connected with the first compressor tonifying Qi entrance again; The exhaust outlet of the first described compressor is connected with the first cross valve, the first described compressor is connected with the first condenser by the first cross valve, first evaporimeter is connected with the first gas-liquid separator by the first cross valve, and the first described gas-liquid separator is connected to the gas returning port of the first compressor; First described plate-type evaporator one end is connected with the first evaporimeter with the first main heating power expansion valve;
The second described heat pump drying unit comprises the second compressor, the second condenser, the second main heating power expansion valve, the second evaporimeter, the second filter, the second cross valve and the second gas-liquid separator; The exhaust outlet of the second described compressor connects the second cross valve, second compressor is connected with the second condenser by the second cross valve, second evaporimeter is connected with the second gas-liquid separator by the second cross valve, the second described gas-liquid separator is connected to the gas returning port of the second compressor, and the second described condenser is connected with the second evaporimeter by the second main heating power expansion valve, the second filter;
The refrigerant adopted in the first described heat pump drying unit is R134a; The refrigerant that the second described heat pump drying unit adopts is R410a; The first described evaporimeter is connected with the second condenser, is supplied to the first heat pump drying unit by the second heat pump drying unit from lower environment temperature draw heat, ensures that the first heat pump drying unit normally works.
Adopt technique scheme, northern dedicated for heat pump Drying unit described in the utility model, by being provided with the first heat pump drying unit and the second heat pump drying unit, be supplied to the first heat pump drying unit by the second heat pump drying unit from lower environment temperature draw heat and ensure that the first heat pump drying unit normally works, effectively ensure that the normal work of whole Drying unit, there is the advantage such as working stability, good reliability.
Accompanying drawing explanation
Fig. 1 is northern dedicated for heat pump Drying unit structural representation described in the utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, northern dedicated for heat pump Drying unit, comprises the first heat pump drying unit 1 and the second heat pump drying unit 2, wherein:
First heat pump drying unit 1 comprises the first compressor 101, first condenser 102, first fluid reservoir 103, first filter 104, first main heating power expansion valve 113, first evaporimeter 105 and the first gas-liquid separator 106, also be provided with the first compressor making-up air device between the first described compressor 101 and the first fluid reservoir 103, the first described compressor making-up air device comprises the first jet expansion valve 107, first plate type heat exchanger 108, first magnetic valve 109 and the second magnetic valve 110, first capillary 111; The first described magnetic valve 109 and the second magnetic valve 110 are in parallel, the first described magnetic valve 109 is in series with the first capillary 111, first plate type heat exchanger 108 successively, the second described magnetic valve 110 is in series with the first jet expansion valve 107 and the first plate type heat exchanger 108 successively, the first described compressor 101 is provided with tonifying Qi entrance, and the first described plate type heat exchanger 108 is connected with the first compressor 101 tonifying Qi entrance again; The exhaust outlet of the first described compressor 101 is connected with the first cross valve 112, the first described compressor 101 is connected with the first condenser 102 by the first cross valve 112, first evaporimeter 105 is connected with the first gas-liquid separator 106 by the first cross valve 112, and the first described gas-liquid separator 106 is connected to the gas returning port of the first compressor 101; First described plate-type evaporator 108 one end is connected with the first evaporimeter 105 with the first main heating power expansion valve 113;
The second described heat pump drying unit 2 comprises the second compressor 201, second condenser 202, second main heating power expansion valve 203, second evaporimeter 204, second filter 205, second cross valve 206 and the second gas-liquid separator 207; The exhaust outlet of the second described compressor 201 connects the second cross valve 206, second compressor 201 is connected with the second condenser 202 by the second cross valve 206, second evaporimeter 204 is connected with the second gas-liquid separator 207 by the second cross valve 206, the second described gas-liquid separator 207 is connected to the gas returning port of the second compressor 201, and the second described condenser 202 evaporates 204 devices by the second main heating power expansion valve 203, second filter 205 and second and is connected;
In addition, the refrigerant adopted in the first described heat pump drying unit 1 is R134a; The refrigerant that the second described heat pump drying unit 2 adopts is R410a; The first described evaporimeter 105 is connected with the second condenser 202, is supplied to the first heat pump drying unit 1 by the second heat pump drying unit 2 from lower environment temperature draw heat, ensures that the first heat pump drying unit normally works.
Northern its operation principle of dedicated for heat pump Drying unit described in the utility model is as follows:
(1) first heat pump drying unit first compressor operating produces the R134a refrigerant of HTHP, enter the first condenser by the exhaust outlet of the first compressor and the first cross valve and carry out heat exchange, be transformed into the liquid of middle temperature high pressure, and discharged by the first condenser, enter the first fluid reservoir; First condenser air outlet temperature is high, can realize the oven dry of logistics; From the first fluid reservoir R134a refrigerant out through the first filter, then by after the first plate type heat exchanger heat exchange, flow to the first main heating power expansion valve, and then enter the first evaporimeter, be finally back to the gas returning port of the first compressor through the first gas-liquid separator; When insufficient pressure in the first compressor, the first magnetic valve can carry out throttling to unnecessary R134a refrigerant; R134a refrigerant is after the second magnetic valve, sprayed by the first jet expansion valve throttling again, change the gas of high-temperature low-pressure into, a small amount of liquid has been mingled with in this gas, again further by the first plate type heat exchanger heat exchange, after converting gas to completely, the tonifying Qi entrance finally entering the first compressor carries out tonifying Qi;
(2) simultaneously, the second heat pump drying unit adopts R410a refrigerant, can be supplied to the first heat pump drying unit, ensure that the first heat pump drying unit normally works from lower environment temperature draw heat.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (1)
1. a northern dedicated for heat pump Drying unit, is characterized in that: comprise the first heat pump drying unit and the second heat pump drying unit;
The first described heat pump drying unit comprises the first compressor, the first condenser, the first fluid reservoir, the first filter, the first main heating power expansion valve, the first evaporimeter and the first gas-liquid separator, also be provided with the first compressor making-up air device between the first described compressor and the first fluid reservoir, the first described compressor making-up air device comprises the first jet expansion valve, the first plate type heat exchanger, the first magnetic valve and the second magnetic valve, the first capillary; The first described magnetic valve and the second magnetic valve are in parallel, the first described magnetic valve is in series with the first capillary, the first plate type heat exchanger successively, the second described magnetic valve is in series with the first jet expansion valve and the first plate type heat exchanger successively, the first described compressor is provided with tonifying Qi entrance, and the first described plate type heat exchanger is connected with the first compressor tonifying Qi entrance again; The exhaust outlet of the first described compressor is connected with the first cross valve, the first described compressor is connected with the first condenser by the first cross valve, first evaporimeter is connected with the first gas-liquid separator by the first cross valve, and the first described gas-liquid separator is connected to the gas returning port of the first compressor; First described plate-type evaporator one end is connected with the first evaporimeter with the first main heating power expansion valve;
The second described heat pump drying unit comprises the second compressor, the second condenser, the second main heating power expansion valve, the second evaporimeter, the second filter, the second cross valve and the second gas-liquid separator; The exhaust outlet of the second described compressor connects the second cross valve, second compressor is connected with the second condenser by the second cross valve, second evaporimeter is connected with the second gas-liquid separator by the second cross valve, the second described gas-liquid separator is connected to the gas returning port of the second compressor, and the second described condenser is connected with the second evaporimeter by the second main heating power expansion valve, the second filter;
The refrigerant adopted in the first described heat pump drying unit is R134a; The refrigerant that the second described heat pump drying unit adopts is R410a; The first described evaporimeter is connected with the second condenser, is supplied to the first heat pump drying unit by the second heat pump drying unit from lower environment temperature draw heat, ensures that the first heat pump drying unit normally works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593813.1U CN204100758U (en) | 2014-10-15 | 2014-10-15 | A kind of northern dedicated for heat pump Drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593813.1U CN204100758U (en) | 2014-10-15 | 2014-10-15 | A kind of northern dedicated for heat pump Drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204100758U true CN204100758U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420593813.1U Expired - Fee Related CN204100758U (en) | 2014-10-15 | 2014-10-15 | A kind of northern dedicated for heat pump Drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204100758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236287A (en) * | 2014-10-15 | 2014-12-24 | 广州德能热源设备有限公司 | Special heat pump drying unit for northern area in China |
| CN109737622A (en) * | 2018-12-25 | 2019-05-10 | 西安交通大学 | The two-stage Auto-cascade cycle low-temperature refrigeration circulating device and round-robin method of duplex injector synergy |
-
2014
- 2014-10-15 CN CN201420593813.1U patent/CN204100758U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236287A (en) * | 2014-10-15 | 2014-12-24 | 广州德能热源设备有限公司 | Special heat pump drying unit for northern area in China |
| CN109737622A (en) * | 2018-12-25 | 2019-05-10 | 西安交通大学 | The two-stage Auto-cascade cycle low-temperature refrigeration circulating device and round-robin method of duplex injector synergy |
| CN109737622B (en) * | 2018-12-25 | 2020-02-07 | 西安交通大学 | Two-stage auto-cascade low-temperature refrigeration cycle system and circulation method for enhancing efficiency of two-stage ejector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20201015 |