CN207797455U - Multistage takes hot step heating direct-cooling type idle air heat pump unit - Google Patents
Multistage takes hot step heating direct-cooling type idle air heat pump unit Download PDFInfo
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- CN207797455U CN207797455U CN201721842612.0U CN201721842612U CN207797455U CN 207797455 U CN207797455 U CN 207797455U CN 201721842612 U CN201721842612 U CN 201721842612U CN 207797455 U CN207797455 U CN 207797455U
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- heat pump
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- idle air
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Abstract
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit to be related to a kind of heat pump system for coal mine methane heat recovery field.Its purpose is to provide a kind of multistage that can improve whole system efficiency hot step is taken to heat direct-cooling type idle air heat pump unit.The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit to include at least two-stage heat pump unit, every grade of heat pump unit includes evaporator, compressor, condenser and expansion valve, it is connected in series with by communicating pipe between the cooling water pipeline of each condenser, the evaporator is used for and flows through the anti-icing fluid after heat producing box and exchange heat, and the condenser with user's hot water for exchanging heat.
Description
Technical field
The utility model belongs to waste-heat recovery device, particularly belongs to a kind of applied to coal mine methane (return air) waste heat recovery profit
With the heat pump system in field.
Background technology
Hot idle air heat pump system is taken based on direct-cooling type depth enthalpy, utmostly to extract coal mine methane heat, is needed using double
Grade takes heat, corresponding to take hot working fluid temperature different per level-one, as level-one takes -8 DEG C/- 4 DEG C of hot working fluid liquid in-out temperature (evaporation temperature
- 13 DEG C of degree), two level takes -15 DEG C/- 11 DEG C of hot working fluid (- 20 DEG C of evaporating temperature).Traditional technology needs to use two heat pump units
It realizes, -4 DEG C/- 8 DEG C of heat pump unit A evaporation side working medium liquid in-outs temperature, heat pump unit B evaporation side working medium liquid in-out temperature
It is -11 DEG C/- 15 DEG C, and above-mentioned two heat pump units are identical, such as 50/40 DEG C (condensation temperature using the hot water temperature needed for side
53 DEG C of degree), also mean that the evaporating temperature of two heat pump units is different, and condensation temperature is identical.To realize that twin-stage takes in this way
Heat must use two heat pump units of A, B, and the low-temperature heat source of two heat pump units is different, and the heat source grade after heating is identical, and two
The COP values of platform heat pump unit also differ.
Theoretical COPA=(273+53)/[(273+53)-(273-13)]=4.94
Theoretical COPB=(273+53)/[(273+53)-(273-20)]=4.46
Two heat pump units are averaged COP=(COPA+COPB)/2=4.7
It can be seen that when using two heat pump units, the COP values of whole system are relatively low, i.e., entire residual neat recovering system
Efficiency it is relatively low.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of multistages that can improve whole system efficiency to take hot ladder
Grade heating direct-cooling type idle air heat pump unit.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, including at least two-stage heat pump unit, often
The grade heat pump unit includes evaporator, compressor, condenser and expansion valve, the cooling water pipeline of each condenser it
Between be connected in series with by communicating pipe, the evaporator is used for and flows through the anti-icing fluid after heat producing box and exchange heat, the condenser
For exchanging heat with user's hot water.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, wherein further including a pedestal, the bottom
It is provided with the heat pump unit on seat.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, wherein in every grade of heat pump unit
Condenser is fixedly installed on the base, and the top of the condenser is equipped with the evaporator, the condenser and evaporator
Between the pipeline that is connected to be equipped with the expansion valve, the top of the evaporator is equipped with the compressor.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, wherein the condenser is disposed side by side on
On the pedestal.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit difference from prior art to be this
At least two-stage heat pump unit is arranged in utility model, and the cooling water pipeline of the condenser in every grade of heat pump unit is connected by communicating pipe
Connection, is illustrated, two heat pump units of A, B are combined, and make a unit, together for two-stage heat pump unit is arranged
When two heat pump units of A, B in condenser realize series connection, i.e., through heat pump unit B condensers heating after hot water enter back into heat pump
Unit A condensers heat again, realize step heating, it is assumed that and heat pump unit B condenser water temperatures are warming up to 45 DEG C by 40 DEG C, then into
Enter and realize that water temperature is warming up to 50 DEG C by 45 DEG C in heat pump unit A condensers, the condensation temperature of such heat pump unit B can be designed as
48 DEG C, the condensation temperature of heat pump unit A can be designed as 53 DEG C, in this way,
Theoretical COPA=(273+53)/[(273+53)-(273-13)]=4.94
Theoretical COPB=(273+48)/[(273+48)-(273-20)]=4.72
Two heat pump units are averaged COP=(COPA+COPB)/2=4.83
As it can be seen that the utility model can improve the synthesis COP values of whole system, that is, improve the efficiency of system.While this
Sample also reduces the condensation temperature of heat pump unit B, optimizes the operating condition of unit, improves the stability of unit.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the schematic diagram that the utility model multistage takes hot step heating direct-cooling type idle air heat pump unit；
Fig. 2 is the front view that the utility model multistage takes hot step heating direct-cooling type idle air heat pump unit；
Fig. 3 is the vertical view that the utility model multistage takes hot step heating direct-cooling type idle air heat pump unit；
Fig. 4 is the left view that the utility model multistage takes hot step heating direct-cooling type idle air heat pump unit.
Specific implementation mode
As shown in Figure 1, the utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, including at least two-stage heat
Pump assembly, every grade of heat pump unit include evaporator, compressor, condenser and expansion valve, and each the condenser is cold
But it is connected in series with by communicating pipe 14 between water lines, the evaporator is used for and flows through the anti-icing fluid 2 after heat producing box 1 and changed
Heat, the condenser with user's hot water for exchanging heat.
In present embodiment, two-stage heat pump unit, respectively level-one heat pump unit and two level heat pump unit, institute are set
It includes level-one evaporator 3, stage compressor 4, first-stage condenser 5 and one-stage expansion valve 6, the two level heat to state level-one heat pump unit
Pump assembly includes secondary evaporimeter 7, split-compressor 9, secondary condenser 10 and compound expansion valve 8, evaporator, compressor, cold
Connection type between condenser and expansion valve is the prior art, and it will not be described here.
First-stage condenser 5 is with 10 concatenated mode of secondary condenser：It is equipped with cooling water in I and II condenser 5,10
Pipeline, the outlet of 10 cooling water pipeline of secondary condenser and the entrance of 5 cooling water pipeline of first-stage condenser are connected by communicating pipe 14
It connects.User's hot water enters from the entrance 12 of 10 cooling water pipe of secondary condenser, cold through secondary condenser 10, communicating pipe 14, level-one
It is flowed out from the outlet 13 of 5 cooling water pipe of first-stage condenser after condenser 5, the hot water of outflow returns to user.
The anti-icing fluid 2 of level-one evaporator 3 is flowed through when flowing through heat producing box 1, is located at the upstream of idle air flow direction；Flow through two level steaming
The anti-icing fluid of device 7 is sent out when flowing through heat producing box 1, is located at the downstream of idle air flow direction, step is completed and takes heat.Hot water used by a user
It first passes through secondary condenser 10 to exchange heat, water temperature rises to 45 DEG C by 40 DEG C, and then 45 DEG C of hot water is using first-stage condenser
5, water temperature rises to 50 DEG C by 45 DEG C, completes the step heating of user's hot water.
As shown in Fig. 2, and shown in combination Fig. 3 and Fig. 4, the utility model multistage takes hot step heating direct-cooling type idle air heat pump
Unit is provided with the heat pump unit wherein further including a pedestal 11 on the pedestal 11.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, wherein in every grade of heat pump unit
Condenser is fixed on the pedestal 11, and the top of the condenser is equipped with the evaporator, the condenser and evaporation
The pipeline being connected between device is equipped with the expansion valve, and the top of the evaporator is equipped with the compressor.
The utility model multistage takes hot step heating direct-cooling type idle air heat pump unit, wherein the condenser is disposed side by side on
On the pedestal 11.
At least two-stage heat pump unit is arranged in the utility model, and the cooling water pipeline of the condenser in every grade of heat pump unit passes through
Communicating pipe 14 is connected in series with, and is illustrated for two-stage heat pump unit is arranged, and two heat pump units of A, B are combined, and are done
Cheng Yitai units, while the condenser in two heat pump units of A, B realizes series connection, i.e., after the heating of heat pump unit B condensers
Hot water enters back into heat pump unit A condensers and heats again, realizes step heating, it is assumed that heat pump unit B condenser water temperatures are by 40 DEG C
45 DEG C are warming up to, enters back into heat pump unit A condensers and realizes that water temperature is warming up to 50 DEG C by 45 DEG C, such heat pump unit B's is cold
Solidifying temperature can be designed as 48 DEG C, and the condensation temperature of heat pump unit A can be designed as 53 DEG C, in this way,
Theoretical COPA=(273+53)/[(273+53)-(273-13)]=4.94
Theoretical COPB=(273+48)/[(273+48)-(273-20)]=4.72
Two heat pump units are averaged COP=(COPA+COPB)/2=4.83
As it can be seen that the utility model can improve the synthesis COP values of whole system, that is, improve the efficiency of system.While this
Sample also reduces the condensation temperature of heat pump unit B, optimizes the operating condition of unit, improves the stability of unit.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the protection of the utility model claims book determination
In range.
Claims (4)
1. a kind of multistage takes hot step heating direct-cooling type idle air heat pump unit, it is characterised in that：Including at least two-stage heat pump unit,
Every grade of heat pump unit includes evaporator, compressor, condenser and expansion valve, the cooling water pipeline of each condenser
Between be connected in series with by communicating pipe, the evaporator is used for and flows through the anti-icing fluid after heat producing box and exchange heat, the condensation
Device with user's hot water for exchanging heat.
2. multistage according to claim 1 takes hot step heating direct-cooling type idle air heat pump unit, it is characterised in that：Further include
One pedestal is provided with the heat pump unit on the pedestal.
3. multistage according to claim 2 takes hot step heating direct-cooling type idle air heat pump unit, it is characterised in that：Every grade institute
It states the condenser in heat pump unit to be fixedly installed on the base, the top of the condenser is equipped with the evaporator, described
The pipeline being connected between condenser and evaporator is equipped with the expansion valve, and the top of the evaporator is equipped with the compressor.
4. multistage according to claim 3 takes hot step heating direct-cooling type idle air heat pump unit, it is characterised in that：It is described cold
Condenser is arranged side by side on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842612.0U CN207797455U (en) | 2017-12-25 | 2017-12-25 | Multistage takes hot step heating direct-cooling type idle air heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842612.0U CN207797455U (en) | 2017-12-25 | 2017-12-25 | Multistage takes hot step heating direct-cooling type idle air heat pump unit |
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| Publication Number | Publication Date |
|---|---|
| CN207797455U true CN207797455U (en) | 2018-08-31 |
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ID=63281036
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721842612.0U Active CN207797455U (en) | 2017-12-25 | 2017-12-25 | Multistage takes hot step heating direct-cooling type idle air heat pump unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940804A (en) * | 2017-12-25 | 2018-04-20 | 北京中矿博能节能科技有限公司 | Multistage takes hot step heating direct-cooling type idle air heat pump unit |
-
2017
- 2017-12-25 CN CN201721842612.0U patent/CN207797455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940804A (en) * | 2017-12-25 | 2018-04-20 | 北京中矿博能节能科技有限公司 | Multistage takes hot step heating direct-cooling type idle air heat pump unit |
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