CN108036506A - A kind of direct combustion type heat-pump hot-water preparation facilities - Google Patents
A kind of direct combustion type heat-pump hot-water preparation facilities Download PDFInfo
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- CN108036506A CN108036506A CN201711451080.2A CN201711451080A CN108036506A CN 108036506 A CN108036506 A CN 108036506A CN 201711451080 A CN201711451080 A CN 201711451080A CN 108036506 A CN108036506 A CN 108036506A
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- refrigerant
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- heat
- direct combustion
- condenser
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000003507 refrigerant Substances 0.000 claims abstract description 95
- 239000012530 fluid Substances 0.000 claims abstract description 88
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000011982 device technology Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 38
- 239000000243 solution Substances 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to heating device technology area, a kind of more particularly to direct combustion type heat-pump hot-water preparation facilities, including direct combustion type heating unit, injector, condenser, compress cell, compressor, throttling unit and heat absorbing units, the working steam entrance of injector is connected by the refrigerant outlet of first fluid pipeline and condenser, direct combustion type heating unit and compress cell are connected on first fluid pipeline, the refrigerant outlet of injector is connected by the refrigerant inlet of second fluid pipeline and condenser, backwater channel is equipped with condenser, for heating backwater with refrigerant heat exchanger；The jetting steam caused entrance of injector is connected by the refrigerant outlet of the 3rd fluid circuit and condenser, and throttling unit, heat absorbing units and compressor are connected in turn on the 3rd fluid circuit.The present invention can not only realize the heating to refrigerant by direct combustion type heating unit, and the heat of external heat source can also be absorbed by heat absorbing units, improves primary energy efficiency.
Description
Technical field
The present invention relates to heating device technology area, more particularly to a kind of direct combustion type heat-pump hot-water preparation facilities.
Background technology
At present, northern heating area haze is seriously polluted, and it is the important original for causing haze that the large area of coal-burning boiler, which uses,
One of because.Country proposes the policy of " preferably then gas, preferably electricity are then electric for gas ", has guided combustion gas to alleviate and administering haze pollution
Boiler and air source heat pump are widelyd popularize, and " coal changes electricity " and " coal changes gas " becomes the important measure that haze is administered.Gas fired-boiler
Gradually increase in the application of northern area at present, it directly heats backwater using the heat produced after combustion of natural gas, to meet
Heat needed for building, the efficiency of conventional gas boiler is 90% or so.But heat grade caused by fuel gas buring compared with
Height, and the heat grade needed for heating load is relatively low, therefore, can not be efficiently using the mode of the direct combustion heat-exchange of natural gas
Utilize this high-grade heat.
In order to efficiently utilize the heat of natural gas, present main means are the methods of flue gas waste heat recovery.Existing side
Method mainly includes Exposure degree method, condensing units method and Heat Pump absorption method.Such technical solution improves to a certain extent
The utilization rate of fuel gas calorie, but in the state of ideal, the highest primary energy efficiency that such technological means can reach
Can not be more than 100%, and present Direct fired absorption heat pump technology be subject to working medium due to being limited, it is difficult in environment temperature very
Low regional large-area applications.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is solve existing heating unit be only capable of to the heat that fuel gas buring produces into
The problem of row utilizes, and the utilization rate of its heat can not improve again.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of direct combustion type heat-pump hot-water preparation facilities, including direct combustion
Type heating unit, injector, condenser, compress cell, compressor, throttling unit and heat absorbing units, the work of the injector
Steam inlet is connected by first fluid pipeline with the refrigerant outlet of the condenser, the direct combustion type heating unit and described
Compress cell is connected on the first fluid pipeline, the refrigerant outlet of the injector by second fluid pipeline with it is described
The refrigerant inlet connection of condenser, the condenser is interior to be equipped with backwater channel, for heating backwater with refrigerant heat exchanger；It is described
The jetting steam caused entrance of injector is connected by the 3rd fluid circuit with the refrigerant outlet of the condenser, and the throttling is single
First, described heat absorbing units and the compressor are sequentially connected on the 3rd fluid circuit, and the throttling unit with it is described
The refrigerant outlet connection of condenser, for will throttle from the refrigerant that the condensator outlet of the condenser comes out into gas-liquid two
Phase, the refrigerant of the gas-liquid two-phase flowed through is evaporated to gaseous state by the heat that the heat absorbing units are used to absorb external heat source, described
Compressor is used to be pressurized the gaseous refrigerant flowed through.
Wherein, regenerator is further included, cry-fluid passage and high temperature fluid passage are equipped with the regenerator；The high temperature
The entrance of fluid passage is connected with the refrigerant outlet of the condenser, the outlet of the high temperature fluid passage and heat absorbing units
Refrigerant inlet connects；The entrance of the cry-fluid passage is connected with the refrigerant outlet of the heat absorbing units, the low temperature
The outlet of fluid passage is connected with the compressor.
Wherein, the compress cell is booster pump, and the throttling unit is electric expansion valve, and the heat absorbing units are evaporation
Device.
Wherein, heat exchanger is further included, is equipped with gas passage and fluid passage in the heat exchanger, the fluid passage goes out
Mouth is connected with the entrance of the backwater channel of condenser, and the entrance of the gas passage and the flue gas of the direct combustion type heating unit go out
Mouth connection.
Wherein, exporting between the jetting steam caused entrance of the injector arranged on the cry-fluid passage is further included
First valve and the second valve, first valve and the compressor parallel, second valve and the compressor and institute
State the first valve in parallel.
Wherein, the 4th fluid circuit is further included, the 4th fluid circuit is equipped with the 3rd valve, the 4th fluid hose
The import on road and the second fluid pipeline connection, outlet and the throttling unit and the heat absorption of the 7th fluid circuit
The 3rd fluid circuit connection between unit.
Wherein, the first fluid pipeline is equipped with the 4th valve, and the 4th valve is connected to the direct combustion type and adds
Between the refrigerant outlet of hot cell and the working steam entrance of the injector；The second fluid pipeline is equipped with unidirectional
Valve, for avoiding refrigerant from being flowed into from the refrigerant outlet of the injector；Further include the 5th fluid circuit, the 5th fluid
One end of pipeline is connected between the direct combustion type heating unit and the 4th valve, the other end be connected to the check valve with
Between the condenser, the 5th fluid circuit is equipped with the 5th valve.
Wherein, the direct combustion type heating unit includes gas fired-boiler, and coolant channel is equipped with the gas fired-boiler, described
The entrance of coolant channel is connected with the compress cell, the outlet of the coolant channel and the working steam of the injector
Entrance connects.
Wherein, the direct combustion type heating unit includes gas fired-boiler, circulating pump, enclosed coil pipe and generator, the generation
Refrigerant accommodating cavity is equipped with device, the entrance of the refrigerant accommodating cavity is connected with the compress cell, and the refrigerant houses
The outlet of chamber is connected with the working steam entrance of the injector, and the circulating pump is arranged on the enclosed coil pipe, the enclosed
Heating agent is equipped with coil pipe, and one section of the enclosed coil pipe is arranged in the refrigerant accommodating cavity, one section is arranged on the gas-fired boiler
In stove.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that：Prepare and fill the present invention provides a kind of direct combustion type heat-pump hot-water
Put, including direct combustion type heating unit, injector, condenser, compress cell, compressor, throttling unit and heat absorbing units, injector
Working steam entrance pass through the refrigerant outlet of first fluid pipeline and condenser and connect, direct combustion type heating unit and supercharging are single
Member is connected on first fluid pipeline, and the refrigerant outlet of injector passes through second fluid pipeline and the refrigerant inlet of condenser
Connection, condenser is interior to be equipped with backwater channel, for heating backwater with refrigerant heat exchanger；The jetting steam caused entrance of injector passes through
The refrigerant outlet of three fluid circuits and condenser connects, and throttling unit, heat absorbing units and compressor are sequentially connected to the 3rd stream
On body pipeline, and the refrigerant outlet of throttling unit and condenser connects.Refrigerant exchanges heat with backwater within the condenser, to backwater
After being heated for users to use, refrigerant is divided into two-way after being come out from condenser, flows through compress cell and direct combustion type all the way
Heating unit carries out pressure build up and is changed into the refrigerant vapour of high temperature and pressure, and enters injector as the working steam of injector
In, another way throttles into gas-liquid two-phase through throttling unit first, then flows through heat absorbing units, the heat outside absorption in heat absorbing units
The heat in source is changed into gaseous state, is then raised by the compression of compressor, gaseous refrigerant pressure and temperature, is then used as and draws
Penetrate steam to enter in injector, pressurize by compressor and heat jetting steam caused mode, hot water preparation plant is existed
Possess higher performance in low temperature environment, suitable for the relatively low ring of regional (or hot-summer and cold-winter area) environment temperature of northern heating
Border, in injector, the working steam injection low-temp low-pressure of high temperature and pressure it is jetting steam caused, by mixing and diffusion action, shape
Into the refrigerant gas of high temperature and pressure, condenser is entered, completes one cycle.The hot water preparation plant of the present invention, not only may be used
To realize the heating to refrigerant by direct combustion type heating unit, the utilization to fuel heat is realized, while suction can also be passed through
Hot cell absorbs the heat of external heat source, and primary energy efficiency is improved relative to traditional gas fired-boiler.
Except it is described above present invention solves the technical problem that, form technical solution technical characteristic and have this
Outside advantage caused by the technical characteristic of a little technical solutions, what other technical characteristics of the invention and these technical characteristics were brought
Advantage, will further illustrate with reference to attached drawing.
Brief description of the drawings
Fig. 1 is the structure diagram for the direct combustion type heat-pump hot-water preparation facilities that the embodiment of the present invention one provides；
Fig. 2 is the structure diagram of direct combustion type heat-pump hot-water preparation facilities provided by Embodiment 2 of the present invention；
Fig. 3 is the structure diagram for the direct combustion type heat-pump hot-water preparation facilities that the embodiment of the present invention three provides；
Fig. 4 is the structure diagram for the direct combustion type heat-pump hot-water preparation facilities that the embodiment of the present invention four provides；
Fig. 5 is the structure diagram for the direct combustion type heat-pump hot-water preparation facilities that the embodiment of the present invention five provides.
In figure：1：Booster pump；2：Gas fired-boiler；3：Injector；4：Condenser；5：Regenerator；6：Electric expansion valve；7：Steam
Send out device；8：Compressor；9：Water pump；10：Heat exchanger；11：First valve；12：Second valve；13：Generator；14：Circulating pump；
15：3rd valve；16：4th valve；17：Check valve；18：5th valve.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained on the premise of creative work is not made, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multigroup " be meant that two or
Two or more.
Embodiment one
A kind of as shown in Figure 1, direct combustion type heat-pump hot-water preparation facilities provided in an embodiment of the present invention, it is characterised in that：Bag
Include direct combustion type heating unit, injector 3, condenser 4, compress cell, compressor 8, throttling unit and heat absorbing units, injector 3
Working steam entrance be connected by first fluid pipeline with the refrigerant outlet of condenser 4, direct combustion type heating unit and supercharging
Unit is connected on first fluid pipeline, and the refrigerant outlet of injector 3 passes through second fluid pipeline and the refrigerant of condenser 4
Entrance connects, and backwater channel is equipped with condenser 4, for heating backwater with refrigerant heat exchanger；The jetting steam caused entrance of injector 3
It is connected by the 3rd fluid circuit with the refrigerant outlet of condenser 4, throttling unit, heat absorbing units and compressor 8 are sequentially connected
In on the 3rd fluid circuit, and throttling unit is connected with the refrigerant outlet of condenser 4.Refrigerant in condenser 4 with backwater
Heat exchange, after being heated to backwater for users to use, refrigerant are divided into two-way after being come out from condenser 4, flow through supercharging all the way
Unit and direct combustion type heating unit carry out the refrigerant vapour that pressure build up is changed into high temperature and pressure, and as the work of injector 3
Steam enters in injector 3, and another way throttles into gas-liquid two-phase through throttling unit first, then flows through outer through heat absorbing units absorption
The heat of portion's heat source is changed into gaseous state, is then raised by the compression of compressor 8, gaseous refrigerant pressure and temperature, then
Entered as jetting steam caused in injector 3, pressurize by compressor and heat jetting steam caused mode, make hot water preparation plant
Higher performance can be possessed in low temperature environment, it is relatively low suitable for regional (or hot-summer and cold-winter area) environment temperature of northern heating
Environment, in injector, the working steam injection low-temp low-pressure of high temperature and pressure it is jetting steam caused, by mixing and diffusion make
With forming the refrigerant gas of high temperature and pressure, enter condenser 4, complete one cycle.The hot water preparation plant of the present invention,
Not only heating to refrigerant can be realized by direct combustion type heating unit, realize the utilization to fuel heat, while can be with
The heat of external heat source is absorbed by heat absorbing units, the efficiency of primary energy is improved relative to traditional gas fired-boiler.
Further, which further includes regenerator 5, and high temperature fluid is equipped with regenerator 5
Passage and cry-fluid passage；High temperature fluid passage is connected between the refrigerant outlet of refrigerator and throttling unit, low temperature stream
Body passage is connected between heat absorbing units and compressor, specifically, the entrance of high temperature fluid passage and the refrigerant of condenser 4 go out
Mouth connection, the outlet of high temperature fluid passage and the refrigerant inlet of heat absorbing units connect；The entrance of cry-fluid passage and heat absorption
The outlet connection of unit refrigerant, the outlet of cry-fluid passage is connected with the jetting steam caused entrance of injector 3.From condenser 4
Refrigerant out, which enters, realizes supercooling in the high temperature fluid passage of regenerator 5, then by throttling unit decrease temperature and pressure section
Gas-liquid two-phase is flow to, the heat in environment is then absorbed by heat absorbing units, reaches saturation or overheat, forms gaseous refrigeration
Agent, then realizes overheat, shape by the high temperature refrigerant heat exchange in the cry-fluid passage and high temperature fluid passage of regenerator 5 again
Refrigerant vapour into overheat is entered in injector 3 as jetting steam caused.
In the present embodiment, compress cell is booster pump 1, and throttling unit is electric expansion valve 6, and heat absorbing units are evaporator
7.Evaporator 7 can use various heating sources, be switched according to season difference or the difference of region and weather, the selection of adaptation to local conditions.
Its heat source includes but are not limited to：Water source, Di Yuan, solar energy straight swollen, solar water, air-source and flue gas source etc..
Further, in the present embodiment, direct combustion type heating unit includes gas fired-boiler 2, and refrigeration is equipped with gas fired-boiler 2
Agent passage, the entrance of coolant channel are connected with booster pump 1, the outlet of coolant channel and the working steam entrance of injector 3
Connection.Gas fired-boiler 2 directly heats the refrigerant in coolant channel by the burning of fuel, can reduce heat exchange link, fill
Divide the heat using fuel.
Further, the direct combustion type heat-pump hot-water preparation facilities in the present embodiment further includes heat exchanger 10, in heat exchanger 10
Equipped with gas passage and fluid passage, the outlet of fluid passage is connected with the entrance of the backwater channel of condenser 4, gas passage
Entrance is connected with the gas vent of direct combustion type heating unit.Backwater by heat exchanger 10 enter in condenser 4 with high temperature and pressure
Refrigerant heat exchanger, the refrigerator gas of the high temperature and pressure in condenser 4 heats user's backwater as heat source, and passes through water pump 9
User end is delivered to, the flue gas wherein produced in gas fired-boiler 2, enters in heat exchanger 10 by exhaust gases passes, heating heat
The backwater of net, can improve the thermal efficiency of gas fired-boiler 2, can reduce the consumption of combustion gas.In addition the heat exchanger 10 in the present embodiment
Preferably condensation heat recoverer, but be not limited to this, can include diversified forms, as Exposure degree, absorption heat pump recuperation of heat with
And the methods of spray recuperation of heat, the connection mode of heat exchanger 10 and condenser 4 can also be series, parallel or be connection in series-parallel
With reference to mode.
Embodiment two
As shown in Fig. 2, the scheme of the present embodiment is similar to the scheme of embodiment one, its something in common repeats no more, the two
Difference lies in：The direct combustion type heat-pump hot-water preparation facilities of the present embodiment is further included arranged on the outlet of cry-fluid passage and injection
The first valve 11 and the second valve 12 between the jetting steam caused entrance of device 3, the first valve 11 are connected with compressor 8, the second valve
Door 12 is in parallel with 8 and first valve 11 of compressor.When the direct combustion type heat-pump hot-water preparation facilities needs to be used in the relatively low ring of temperature
When in border, the first valve 11 is opened, closes the second valve 12, refrigerant is passed through the supercharging of compressor 8, when the direct combustion type heat pump
When hot water preparation plant needs to run in the higher environment of temperature, it is not necessary to improving the entrance refrigerant vapour of injector 3
Pressure, close the first valve 11 at this time, open the second valve 12, compressor 8 is stopped, and makes refrigerant without compressor
8 enter directly into injector 3.In the present embodiment, the first valve 11 and the second valve 12 are solenoid valve.
Embodiment three
As shown in figure 3, the present embodiment is similar to embodiment two, its something in common repeats no more, the present embodiment and embodiment
Two difference lies in：Direct combustion type heat-pump hot-water preparation facilities in the present embodiment further includes the 4th fluid circuit, the 4th fluid hose
Road is equipped with the 3rd valve 15, import and the second fluid pipeline connection of the 4th fluid circuit, the outlet of the 4th fluid circuit with
The 3rd fluid circuit connection between electric expansion valve 6 and evaporator 7.The refrigerant of high temperature and pressure in from injector 3 out,
It can be entered through the 4th fluid circuit in evaporator 7 and absorb the heat of external heat source, such case is suitable for evaporator 7 with sky
When gas is heat source, and when environment temperature is relatively low, when humidity is larger, evaporator 7 there are frosting hidden danger, therefore, when using air-cooled
Need to consider the means to defrost during evaporator 7, can be achieved using the direct combustion type heat-pump hot-water preparation facilities in the present embodiment,
When needing to defrost to evaporator 7, the 3rd valve 15 is opened, makes the refrigerant vapour bypass of high temperature and pressure exported from injector 3
To the entrance of evaporator 7, since the temperature and pressure of some refrigerant steam is higher, can realize to evaporator
The effect of 7 defrost, the 3rd valve 15 in the present embodiment are solenoid valve, and when no power is in normally off.
Example IV
As shown in figure 4, the present embodiment is similar to embodiment two, its something in common repeats no more, the present embodiment and embodiment
Two difference lies in：Direct combustion type heating unit in the present embodiment includes gas fired-boiler 2, circulating pump 14, enclosed coil pipe and generation
Device 13, generator 13 is interior to be equipped with refrigerant accommodating cavity, and the entrance of refrigerant accommodating cavity is connected with booster pump 1, refrigerant accommodating cavity
Outlet be connected with the working steam entrance of injector 3, circulating pump 14 is arranged on enclosed coil pipe, is equipped with heating agent in enclosed coil pipe,
And in one section of refrigerant being immersed in refrigerant accommodating cavity of enclosed coil pipe, one section is arranged in gas fired-boiler 2.Gas fired-boiler 2
The heating agent in enclosed coil pipe is heated in interior fuel combustion, and heating agent is then conveyed under the action of circulating pump 14 to generator
With flowing through the refrigerant heat exchanger in the refrigerant accommodating cavity of heater in 13, the refrigerant vapour of high temperature and pressure is produced, as drawing
The working steam of emitter 3.
Embodiment five
As shown in figure 5, the present embodiment is similar to embodiment two, its something in common repeats no more, the two difference lies in：This
The first fluid pipeline of the direct combustion type heat-pump hot-water preparation facilities of embodiment is equipped with the 4th valve 16, and the 4th valve 16 connects
Between the refrigerant outlet of gas fired-boiler 2 and the working steam entrance of injector 3；Second fluid pipeline is equipped with check valve
17, for avoiding refrigerant from being flowed into from the refrigerant outlet of injector 3；The 5th fluid circuit is further included, the 5th fluid circuit
One end is connected between 2 and the 4th valve 16 of gas fired-boiler, and the other end is connected between check valve 17 and condenser 4, the 5th stream
Body pipeline is equipped with the 5th valve 18.When outdoor temperature is extremely low, evaporator 7 can not work, then be switched to boiler mode operation.
At this time, 6 and the 4th valve 16 of electric expansion valve is closed, opens the 5th valve 18.Refrigerant is transported to gas-fired boiler by booster pump 1
Heated in stove 2, then by the 5th fluid circuit, be directly entered the backwater that heat supply network is heated in condenser 4, the refrigeration after cooling down
Agent, then be transported in gas fired-boiler 2 and heated by booster pump 1, complete circulation.It should be noted that the 4th valve in the present embodiment
16 and the 5th valve 18 of door is also all solenoid valve.
In use, backwater is pressed into regenerator 5 using water pump 9, first with the fume afterheat that gas fired-boiler 2 produces into
Row heat exchange, improves the temperature of backwater, is steamed then into the refrigerator of the high temperature and pressure in condenser 4 with being flowed through in condenser 4
Vapour exchanges heat, and is eventually fed user's use.
In conclusion direct combustion type heat-pump hot-water preparation facilities provided in an embodiment of the present invention, has the following advantages：
(1) gas fired-boiler, which directly burns, produces heat, can be used for the working steam for producing injector, the injection of injector
Steam utilization evaporator extracts low-grade heat from environment, discharges within the condenser, therefore the primary energy efficiency of device exceedes
1.0, so as to reduce the consumption of combustion gas.
(2) gas fired-boiler, which directly burns, produces the refrigerant vapour of high temperature, effectively make use of the high-grade heat of natural gas
Amount.
(3) flue gas that gas fired-boiler produces, heats user's backwater by heat exchanger, has recycled the waste heat in flue gas, reduce
The thermic load of condenser, reduces the consumption of combustion gas, improves the efficiency of gas fired-boiler.
(4) defrosted using the steam of the high temperature and pressure of injector outlet, make equipment after frosting, being capable of rapid defrost
Recover normal operation.
(5) when environment temperature is relatively low, equipment still is able to be run better than the efficiency of gas fired-boiler.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (9)
- A kind of 1. direct combustion type heat-pump hot-water preparation facilities, it is characterised in that：Including direct combustion type heating unit, injector, condenser, Compress cell, compressor, throttling unit and heat absorbing units, the working steam entrance of the injector by first fluid pipeline with The refrigerant outlet connection of the condenser, the direct combustion type heating unit and the compress cell are connected to the first fluid On pipeline；The refrigerant outlet of the injector is connected by second fluid pipeline with the refrigerant inlet of the condenser, institute State in condenser and be equipped with backwater channel, for heating backwater with refrigerant heat exchanger；The jetting steam caused entrance of the injector passes through 3rd fluid circuit is connected with the refrigerant outlet of the condenser, the throttling unit, the heat absorbing units and the compression Machine is sequentially connected on the 3rd fluid circuit, and the throttling unit is connected with the refrigerant outlet of the condenser, is used In the refrigerant throttling that will be come out from the condensator outlet of the condenser into gas-liquid two-phase, the heat absorbing units are used to absorb outer The refrigerant of the gas-liquid two-phase flowed through is evaporated to gaseous state by the heat of boundary's heat source, and the compressor is used for the gaseous refrigerant to flowing through Agent is pressurized.
- 2. direct combustion type heat-pump hot-water preparation facilities according to claim 1, it is characterised in that：Regenerator is further included, it is described Cry-fluid passage and high temperature fluid passage are equipped with regenerator；The system of the entrance of the high temperature fluid passage and the condenser Cryogen outlet connection, the outlet of the high temperature fluid passage and the refrigerant inlet of heat absorbing units connect；The cryogen is led to The entrance in road is connected with the refrigerant outlet of the heat absorbing units, and the outlet of the cry-fluid passage connects with the compressor Connect.
- 3. direct combustion type heat-pump hot-water preparation facilities according to claim 2, it is characterised in that：The compress cell is supercharging Pump, the throttling unit is electric expansion valve, and the heat absorbing units are evaporator.
- 4. direct combustion type heat-pump hot-water preparation facilities according to claim 1, it is characterised in that：Heat exchanger is further included, it is described The entrance company of gas passage and fluid passage, the outlet of the fluid passage and the backwater channel of condenser is equipped with heat exchanger Connect, the entrance of the gas passage is connected with the exhanst gas outlet of the direct combustion type heating unit.
- 5. direct combustion type heat-pump hot-water preparation facilities according to claim 2, it is characterised in that：Further include and be arranged on the low temperature The first valve and the second valve between the outlet of fluid passage and the jetting steam caused entrance of the injector, first valve Connect with the compressor, second valve and the compressor and first valve in parallel.
- 6. direct combustion type heat-pump hot-water preparation facilities according to claim 5, it is characterised in that：Further include the 4th fluid hose Road, the 4th fluid circuit are equipped with the 3rd valve, and import and the second fluid pipeline of the 4th fluid circuit connect Logical, the outlet of the 4th fluid circuit is connected with the 3rd fluid circuit between the throttling unit and the heat absorbing units.
- 7. direct combustion type heat-pump hot-water preparation facilities according to claim 5, it is characterised in that：On the first fluid pipeline Equipped with the 4th valve, and the 4th valve is connected to the refrigerant outlet of the direct combustion type heating unit and the injector Between working steam entrance；The second fluid pipeline is equipped with check valve, for avoiding refrigerant from the system of the injector Cryogen outlet flows into；The 5th fluid circuit is further included, one end of the 5th fluid circuit is connected to the direct combustion type heating list First the other end is connected between the check valve and the condenser between the 4th valve, the 5th fluid circuit It is equipped with the 5th valve.
- 8. according to claim 1-7 any one of them direct combustion type heat-pump hot-water preparation facilities, it is characterised in that：The direct combustion type Heating unit includes gas fired-boiler, is equipped with coolant channel in the gas fired-boiler, the entrance of the coolant channel with it is described Compress cell connects, and the outlet of the coolant channel is connected with the working steam entrance of the injector.
- 9. according to claim 1-7 any one of them direct combustion type heat-pump hot-water preparation facilities, it is characterised in that：The direct combustion type Heating unit includes gas fired-boiler, circulating pump, enclosed coil pipe and generator, and refrigerant accommodating cavity, institute are equipped with the generator The entrance for stating refrigerant accommodating cavity is connected with the compress cell, the outlet of the refrigerant accommodating cavity and the work of the injector Make steam inlet connection, the circulating pump is arranged on the enclosed coil pipe, and heating agent, and the enclosed are equipped with the enclosed coil pipe In refrigerant in one section of submergence of coil pipe and the refrigerant accommodating cavity, one section is arranged in the gas fired-boiler.
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| CN201711451080.2A CN108036506A (en) | 2017-12-27 | 2017-12-27 | A kind of direct combustion type heat-pump hot-water preparation facilities |
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| CN201711451080.2A CN108036506A (en) | 2017-12-27 | 2017-12-27 | A kind of direct combustion type heat-pump hot-water preparation facilities |
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| CN114322470A (en) * | 2021-12-10 | 2022-04-12 | 同济大学 | Steam draws high temperature heat pump drying system who penetrates reinforcing |
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