CN204128238U - A kind of can the cascade high-temperature heat pump of quickly defrosting - Google Patents
A kind of can the cascade high-temperature heat pump of quickly defrosting Download PDFInfo
- Publication number
- CN204128238U CN204128238U CN201420555669.2U CN201420555669U CN204128238U CN 204128238 U CN204128238 U CN 204128238U CN 201420555669 U CN201420555669 U CN 201420555669U CN 204128238 U CN204128238 U CN 204128238U
- Authority
- CN
- China
- Prior art keywords
- defrosting
- heat exchanger
- compressor
- defrosts
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a kind of can the cascade high-temperature heat pump of quickly defrosting, this cascade high-temperature heat pump of quickly defrosting can increase defrosting inlet pipe and the pipe that defrosts out on First Heat Exchanger, defrosting inlet pipe is connected with cross valve, the pipe that defrosts out is connected with the second throttling arrangement, when unit defrosts, only need to open high-pressure system, the high temperature refrigerant heat that second compressor directly produces by this heat pump is entered in First Heat Exchanger by defrosting pipe and defrosts, once transform defrosting, improve system defrosting efficiency, reduce energy consumption, this utility model is used for art of heat pumps.
Description
Technical field
The utility model relates to heat pump field, particularly relate to a kind of can the cascade high-temperature heat pump of quickly defrosting.
Background technology
Cascade type heat pump defrosting in the past usually adopts two systems to freeze realizations simultaneously, but such Defrost mode can exist following problem:
1), will by twice realization defrosting that be converted, once to Intermediate Heat Exchanger by high-pressure system high temperature refrigerant converting heat, second time is that the converting heat absorbed by Intermediate Heat Exchanger is used for evaporating to low-pressure system thus promotes the normal circulation of defrost system, but greatly can reduce defrosting efficiency by twice conversion defrosting, increase energy consumption;
2), when unit at low ambient temperatures Defrost operation time, low-pressure system is easy to the phenomenon occurring that pressure reduction is little, thus cause low-pressure system feed flow difficulty, the refrigerant entering low-pressure system evaporimeter tails off, so have impact on system defrosting.
Utility model content
For solving the problem, the utility model provide a kind of effectively can reduce energy consumption can the cascade high-temperature heat pump of quickly defrosting.
The utility model solves the technical scheme that its technical problem adopts:
A kind of can the cascade high-temperature heat pump of quickly defrosting, comprise the second compressor being connected in parallel on and Intermediate Heat Exchanger side heat exchanger tube being positioned at high-pressure system side, second heat exchanger, second throttling arrangement and the First Heat Exchanger being positioned at low-pressure system side, first compressor, first throttle device, second compressor is connected to the second heat exchanger by the C mouth of cross valve, second compressor is connected to Intermediate Heat Exchanger by the E mouth of cross valve, the hot outlet tube processed that First Heat Exchanger is provided with connection first compressor be connected first throttle device heat inlet pipe, First Heat Exchanger is also provided with defrosting inlet pipe and the pipe that defrosts out, defrosting inlet pipe is connected with cross valve, the pipe that defrosts out is connected with the second throttling arrangement.
Be further used as the improvement of technical solutions of the utility model, between the first compressor and hot outlet tube processed, be provided with the first gas-liquid separator.
Be further used as the improvement of technical solutions of the utility model, connecting with the second compressor is provided with the second gas-liquid separator.
Be further used as the improvement of technical solutions of the utility model, between Intermediate Heat Exchanger and defrosting inlet pipe, be provided with the first check valve, at Intermediate Heat Exchanger and defrost out between pipe and be provided with the second check valve.
The beneficial effects of the utility model: this cascade high-temperature heat pump of quickly defrosting can increase defrosting inlet pipe and the pipe that defrosts out on First Heat Exchanger, defrosting inlet pipe is connected with cross valve, the pipe that defrosts out is connected with the second throttling arrangement, when unit defrosts, only need to open high-pressure system, the high temperature refrigerant heat that the second compressor directly produces by this heat pump is entered in First Heat Exchanger by defrosting pipe and defrosts, and once transforms defrosting, improve system defrosting efficiency, reduce energy consumption.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment overall structure schematic diagram.
Detailed description of the invention
With reference to Fig. 1, the utility model be a kind of can the cascade high-temperature heat pump of quickly defrosting, comprise the second compressor 21 being connected in parallel on and Intermediate Heat Exchanger 3 side heat exchanger tube being positioned at high-pressure system 2 side, second heat exchanger 24, second throttling arrangement 23 and the First Heat Exchanger 12 being positioned at low-pressure system 1 side, first compressor 11, first throttle device 13, second compressor 21 is connected to the second heat exchanger 24 by the C mouth of cross valve 22, second compressor 21 is connected to Intermediate Heat Exchanger 3 by the E mouth of cross valve 22, the hot outlet tube processed 121 that First Heat Exchanger 12 is provided with connection first compressor 11 be connected first throttle device 13 heat inlet pipe 122, First Heat Exchanger 12 is also provided with defrosting inlet pipe 123 and the pipe 124 that defrosts out, defrosting inlet pipe 123 is connected with cross valve 22, the pipe 124 that defrosts out is connected with the second throttling arrangement 23.
As the utility model preferred embodiment, the first gas-liquid separator 14 is provided with between the first compressor 11 and hot outlet tube processed 121.
As the utility model preferred embodiment, connect with the second compressor 21 and be provided with the second gas-liquid separator 25.
As the utility model preferred embodiment, between Intermediate Heat Exchanger 3 and defrosting inlet pipe 123, be provided with the first check valve 27, at Intermediate Heat Exchanger 3 and defrost out between pipe 124 and be provided with the second check valve 26.
This cascade high-temperature heat pump of quickly defrosting can increase defrosting inlet pipe 123 and the pipe 124 that defrosts out on First Heat Exchanger 12, defrosting inlet pipe 123 is connected with cross valve 22, the pipe 124 that defrosts out is connected with the second throttling arrangement 23, when unit defrosts, only need to open high-pressure system 2, the refrigerant gas of the HTHP that the second compressor 21 is discharged is introduced into the D mouth of cross valve 22, then through cross valve 22 E mouth by defrosting inlet pipe 124 enter in First Heat Exchanger 12 carry out defrosting process, the refrigerant liquid of middle temperature high pressure is become by the cold-producing medium of lowering the temperature, the refrigerant liquid becoming low-temp low-pressure after the second throttling arrangement 23 carries out throttling is entered again by the pipe that defrosts out.Then, low-temperature low-pressure refrigerant liquid enters the second heat exchanger 24 inside and evaporates, become low-temperature low-pressure refrigerant gas and get back to the second compressor 21 after the S mouth of cross valve 22 enters the second gas-liquid separator 25, the high temperature refrigerant heat that second compressor 21 directly produces by this heat pump is entered in First Heat Exchanger 12 by defrosting inlet pipe 123 and defrosts, once transform defrosting, improve system defrosting efficiency, reduce energy consumption.
Because high-pressure system 2 end thermal source is stablized, not affected by environment, make system defrosting speed fast; When adding Defrost operation, low-pressure system is not opened, and effectively prevent because low-pressure system feed flow difficulty is on the impact of defrosting.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (4)
1. one kind can the cascade high-temperature heat pump of quickly defrosting, it is characterized in that: comprise the second compressor (21) being connected in parallel on and Intermediate Heat Exchanger (3) side heat exchanger tube being positioned at high-pressure system (2) side, second heat exchanger (24), second throttling arrangement (23) and be positioned at the First Heat Exchanger (12) of low-pressure system (1) side, first compressor (11), first throttle device (13), described second compressor (21) is connected to the second heat exchanger (24) by the C mouth of cross valve (22), described second compressor (21) is connected to Intermediate Heat Exchanger (3) by the E mouth of cross valve (22), the hot outlet tube processed (121) that described First Heat Exchanger (12) is provided with connection first compressor (11) be connected first throttle device (13) heat inlet pipe (122), described First Heat Exchanger (12) is also provided with defrosting inlet pipe (123) and the pipe that defrosts out (124), described defrosting inlet pipe (123) is connected with cross valve (22), the described pipe that defrosts out (124) is connected with the second throttling arrangement (23).
2. according to claim 1 can the cascade high-temperature heat pump of quickly defrosting, it is characterized in that: between described first compressor (11) and hot outlet tube processed (121), be provided with the first gas-liquid separator (14).
3. according to claim 1 can the cascade high-temperature heat pump of quickly defrosting, it is characterized in that: connecting with described second compressor (21) is provided with the second gas-liquid separator (25).
4. according in claims 1 to 3 described in any one can the cascade high-temperature heat pump of quickly defrosting, it is characterized in that: between described Intermediate Heat Exchanger (3) and defrosting inlet pipe (123), be provided with the first check valve (27), between described Intermediate Heat Exchanger (3) and the pipe that defrosts out (124), be provided with the second check valve (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555669.2U CN204128238U (en) | 2014-09-25 | 2014-09-25 | A kind of can the cascade high-temperature heat pump of quickly defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555669.2U CN204128238U (en) | 2014-09-25 | 2014-09-25 | A kind of can the cascade high-temperature heat pump of quickly defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204128238U true CN204128238U (en) | 2015-01-28 |
Family
ID=52384589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555669.2U Active CN204128238U (en) | 2014-09-25 | 2014-09-25 | A kind of can the cascade high-temperature heat pump of quickly defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204128238U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937822A (en) * | 2016-06-21 | 2016-09-14 | 广东芬尼克兹节能设备有限公司 | Cascade type high-temperature heat pump with high defrosting performance and control method of cascade type high-temperature heat pump |
| CN106979638A (en) * | 2017-04-28 | 2017-07-25 | 上海理工大学 | Automobile air-conditioning evaporator defroster |
| CN108036557A (en) * | 2017-12-28 | 2018-05-15 | 广东芬尼克兹节能设备有限公司 | A kind of parallel connection Cascade type heat pump system |
-
2014
- 2014-09-25 CN CN201420555669.2U patent/CN204128238U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937822A (en) * | 2016-06-21 | 2016-09-14 | 广东芬尼克兹节能设备有限公司 | Cascade type high-temperature heat pump with high defrosting performance and control method of cascade type high-temperature heat pump |
| CN106979638A (en) * | 2017-04-28 | 2017-07-25 | 上海理工大学 | Automobile air-conditioning evaporator defroster |
| CN108036557A (en) * | 2017-12-28 | 2018-05-15 | 广东芬尼克兹节能设备有限公司 | A kind of parallel connection Cascade type heat pump system |
| CN108036557B (en) * | 2017-12-28 | 2023-11-14 | 广东芬尼克兹节能设备有限公司 | Parallel cascade heat pump system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104075477A (en) | Cascade high-temperature heat pump | |
| CN104359246A (en) | CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection | |
| CN204128238U (en) | A kind of can the cascade high-temperature heat pump of quickly defrosting | |
| CN104236164A (en) | Ultra-high temperature cascade water source heat pump system | |
| CN203940649U (en) | The cascade high-temperature heat pump that a kind of high efficiency heats | |
| CN201876033U (en) | Heat-regeneration refrigerating system with check bridge | |
| CN203964449U (en) | The switchable heat pump of a kind of single twin-stage | |
| CN200972282Y (en) | Water heating set with two-stage compression air heat pump | |
| CN203010922U (en) | Single-stage-compressing double-stage-heating high-temperature heat pump water heater | |
| CN204254927U (en) | The CO of eddy current separating liquid and injector injection 2two temp, refrigerating system | |
| CN204115286U (en) | A kind of superposition type directly-heated high temperature heat pump | |
| CN102305492B (en) | Multi-evaporating-temperature combined jet refrigerating system | |
| CN203940648U (en) | A kind of cascade high-temperature heat pump | |
| CN104236287A (en) | Special heat pump drying unit for northern area in China | |
| CN201159876Y (en) | Double-loop miniaturization ice water refrigeration and circulation system | |
| CN204100758U (en) | A kind of northern dedicated for heat pump Drying unit | |
| CN202204214U (en) | Precooling waste heat recovery system before throttling of heat pump of integrated heat-pump water heater | |
| CN203053083U (en) | Heat recovery type module type air-cooled water chilling unit | |
| CN203629164U (en) | Throttling device for hot pump water heater | |
| CN102721240B (en) | A kind of low-temperature heat pump air conditioner heat-exchange system with icing protection | |
| CN204115287U (en) | With the cascade high-temperature heat pump of phase change heat accumulator | |
| CN101706186A (en) | Defrosting device of air heat energy heat pump water heater | |
| CN204176988U (en) | One stablizes frost removal type cascade high-temperature heat pump | |
| CN204593928U (en) | A kind of Energy-saving reformation type refrigerator circulation | |
| CN104374109A (en) | Vortex tube and ejector combined CO2 refrigerating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |