CN112050175A

CN112050175A - Heat storage type heat pump steam unit

Info

Publication number: CN112050175A
Application number: CN202010716859.8A
Authority: CN
Inventors: 彭福明
Original assignee: Dongguan Furuisi Environmental Protection Equipment Co ltd
Current assignee: Dongguan Furuisi Environmental Protection Equipment Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2020-12-08
Anticipated expiration: 2040-07-23
Also published as: CN112050175B

Abstract

The invention relates to a heat storage type heat pump steam unit which is provided with a heat pump unit, a heat preservation water tank, a high-temperature heat pool and a steam generator, wherein the heat preservation water tank is connected with the heat pump unit to form a hot water supply system; the steam generator is connected with the high-temperature heat pool and is used for mixing the first steam with the atomized water to form second steam. The invention adopts the heat pump heating technology to match with the heat storage mode, has good energy-saving effect and high energy utilization rate, the high-temperature heat pool can store heat in advance, then the hot water provided by the heat-preservation water tank is quickly heated and heated, the working clearance is fully utilized to store heat, the peak-shifting power utilization is achieved, and the operating cost is greatly reduced. The steam generator mixes the first steam provided by the high-temperature hot pool with the atomized water to form second steam, and the industrial production needs are met. The whole system is stable and safe in operation and low in investment cost.

Description

Heat storage type heat pump steam unit

Technical Field

The invention relates to the technical field of steam equipment, in particular to industrial steam equipment.

Background

In the current industrial production, some steam is required to be heated and formed or subjected to heat preservation and shaping, the required steam is mainly produced by a boiler, the boiler adopts combustion fuel to heat water, so that the water is vaporized into high-temperature and high-pressure steam, the fuel is mainly coal, fuel oil and fuel gas, and the coal-fired boiler has the defects of environmental pollution and high sulfur content, and the exhaust gas discharged by combustion can cause serious pollution to air; moreover, the stockpiling of coal also needs a large amount of space and is dusty. The oil-fired boiler has the disadvantages of high fuel price, high use cost, high risk of transporting and storing fuel and easy accident occurrence; the use of the gas boiler is conditional, and the gas boiler can be used only in places with gas pipelines and has no gas in some laggard places; meanwhile, the problem of uneven combustion rate and heat radiation exists in boiler combustion, and the steam generation rate and quality are greatly influenced. The steam is produced by the electric heating mode, the problems existing in boiler production can be solved well, but the existing electric heating steam generating equipment is large in power consumption, high in peak power utilization time and high in electricity price, so that the production and operation cost is high, and the development of enterprises is not facilitated.

Disclosure of Invention

The invention aims to provide a heat storage type heat pump steam unit, which utilizes heat pump technology to cooperate with heat storage, not only solves the technical problem of steam production by boiler combustion, but also effectively reduces the power consumption and the operation cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a heat storage type heat pump steam machine set, comprising:

a heat pump unit,

the heat-preservation water tank is connected with the heat pump unit to form a hot water supply system;

the high-temperature heat pool is connected with the heat-preservation water tank through a pipeline to realize the heating of hot water provided by the heat-preservation water tank, and the high-temperature heat pool works based on a heat storage mode to produce first steam;

the steam generator is connected with the high-temperature heat pool, first steam provided by the high-temperature heat pool is mixed with atomized water to form second steam, and the temperature of the first steam is higher than that of the second steam.

The above scheme is further that the steam generator is provided with a mixing tank, and a flow guide system for guiding the first steam and the atomized water to flow in a mixing mode is arranged in the mixing tank.

The mixing tank is in a long-strip tubular shape, and an air inlet end and an air outlet end are arranged in the axial direction of the mixing tank; the air inlet end is assembled into an air pipe and an water inlet pipe, one end of the air pipe is connected with the high-temperature heat pool, and the other end of the air pipe forms an air nozzle which extends into the mixing tank and extends towards the direction of the air outlet end; the end of the water inlet pipe extending into the mixing tank is provided with an atomizing nozzle, and the injection point position of the atomizing nozzle is closer to the air outlet end relative to the air injection port of the air inlet pipe; the flow guide system comprises a flow guide cover and a serpentine flow channel, the flow guide cover guides atomized water sprayed by the atomizing nozzle to be mixed with first steam sprayed by the air spraying opening, the first steam and the atomized water are guided to be mixed and flow to the serpentine flow channel, and the tail end of the serpentine flow channel is communicated with an air outlet end.

The air guide sleeve is of a U-shaped long cylinder structure with one closed end, and covers the air inlet pipe and the water inlet pipe in a reverse buckling manner; the snakelike runner is formed by matching the peripheral spiral groove of the air guide sleeve with the inner wall of the mixing tank, and the opening end of the air guide sleeve is communicated with the peripheral spiral groove of the air guide sleeve.

According to the scheme, the mixing tank is further provided with an electromagnetic heating module, and the electromagnetic heating module reduces heating power step by step from the air inlet end to the air outlet end in the axial direction of the mixing tank.

Above-mentioned scheme is further, blending tank, kuppe, intake pipe and inlet tube coaxial arrangement, the inlet tube extends in the intake pipe is inside, and the atomizer of inlet tube exposes the intake pipe.

The high-temperature heat pool comprises a heat-insulating shell, a heat-storing inner core, a heating element and a heat exchanger, wherein the heating element and the heat exchanger are attached to the heat-storing inner core; the hot water provided by the heat-preservation water tank obtains heat energy through the heat exchanger to produce first steam.

In the scheme, the heating element is a carbon fiber heating pipe, and the heating element is inserted into a preset jack of the heat storage inner core in a replaceable manner.

The heat exchanger is composed of a spiral pipe wound on the heat storage inner core, a high-pressure pump and an automatic regulating valve are arranged on a connecting pipeline between the heat exchanger and the heat preservation water tank, and the automatic regulating valve is located at the output end of the high-pressure pump.

The invention adopts the heat pump heating technology to match with the heat storage mode, the heat pump system has good energy-saving effect, and the heat pump system is combined with the heat-preservation water tank, thereby realizing the storage and utilization of energy, having high energy utilization rate and more remarkable energy-saving effect. The high-temperature heat pool can store heat in advance, then the hot water provided by the heat-preservation water tank is heated rapidly to raise the temperature, the working clearance is fully utilized to store heat, the peak-shifting power utilization is achieved, and the operating cost is greatly reduced. The steam generator mixes the first steam provided by the high-temperature hot pool with the atomized water to form second steam, and the industrial production needs are met. The whole system is stable and safe in operation and low in investment cost, solves the technical problem of steam production through boiler combustion, effectively reduces the power consumption and the operation cost, and accords with industrial popularization and application.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the high temperature thermal bath of the embodiment of FIG. 1;

fig. 3 is a schematic structural view of the steam generator of the embodiment of fig. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, 2 and 3, which are schematic views of a preferred embodiment of the present invention, the present invention relates to a heat storage type heat pump steam unit, which includes a heat pump unit 1, a heat preservation water tank 2, a high temperature heat pool 3 and a steam generator 4. This holding water box 2 is connected with heat pump set 1 and forms hot water supply system, adopts the heat pump technique, and is energy-conserving high-efficient, and the temperature of holding water box 2 reaches 90~100 ℃ to subsequent quick vaporization reduces the vaporization time. This high temperature hot pond 3 passes through pipe connection holding water box 2, realizes the hot water intensification with holding water box 2 provides, and high temperature hot pond 3 is based on heat-retaining formula work, produces first steam, can reach low-cost operating modes such as peak staggering power consumption, has preferred economic nature. The steam generator 4 is connected with the high-temperature heat pool 3, the steam generator 4 mixes first steam provided by the high-temperature heat pool 3 with atomized water to form second steam based on a flash evaporation mode, and the temperature of the first steam is higher than that of the second steam. The first steam is superheated steam, the temperature of the first steam can reach 480-500 ℃, and atomized water is heated to form steam by utilizing the high-temperature action of the first steam, so that the industrial production requirement is met.

Referring to fig. 1 and 3, in the embodiment, the steam generator 4 has a mixing tank 41, and a flow guiding system 42 for guiding the first steam and the atomized water to flow in a mixing manner is disposed in the mixing tank 41, so as to increase the effect of the first steam on the atomized water, so that the first steam and the atomized water are fully mixed to obtain the second steam with balanced temperature and pressure. Further, in this embodiment, the mixing tank 41 is in a long tubular shape and is vertically disposed, the mixing tank 41 is provided with an air inlet end 411 and an air outlet end 412 in the axial direction, the air inlet end 411 is located below the air outlet end 412, and the air inlet end 411 is assembled with the air inlet pipe 43 and the water inlet pipe 44. One end of the air inlet pipe 43 is connected with the high-temperature heat pool 3, the other end of the air inlet pipe 43 forms an air outlet 431, the air outlet 431 extends into the mixing tank 41 and extends towards the direction of the air outlet end 412, the first steam is output from the air outlet 431, and the first steam of the high-temperature heat pool 3 is introduced into the mixing tank 41. The end that inlet tube 44 stretched into in the blending tank 41 is equipped with atomizer 441, and the jet orifice 431 of the relative intake pipe 43 of jet point position of this atomizer 441 is more close to gas outlet end 412, and atomizer 441 sprays the atomizing water, and first steam of jet orifice 431 blowout carries out the contact and mixes, and when the atomizing water tenesmus, first steam reaches the efficiency of lifting the atomizing water from lower to upper, promotes the high temperature effect of first steam. The diversion system 42 includes a diversion cover 421 and a serpentine channel 422, the diversion cover 421 guides the atomized water sprayed by the atomizer 441 to mix with the first steam sprayed by the nozzle 431, and guides the first steam and the atomized water to mix and flow to the serpentine channel 422, the end of the serpentine channel 422 is communicated with the air outlet 412, and the air outlet 412 outputs the second steam through a corresponding pipeline and a control valve. Further, kuppe 421 is the long section of thick bamboo structure of one end confined U-shaped, and this kuppe 421 back-off covers intake pipe 43 and inlet tube 44, gives the atomized water and the first steam barrier force that spray out, lets atomized water and the first steam gyration mutual contact mix, and the contact is more abundant, promotes the high temperature effect of first steam. Snakelike runner 422 is that the inner wall that matches blending tank 41 by the periphery helicla flute of kuppe 421 constitutes, and the open end of kuppe 421 and the periphery helicla flute intercommunication of kuppe 421, this simple structure, convenient preparation can effectively increase the mobile contact, makes first steam and atomized water mix more evenly, and the second steam temperature, the pressure that produce are balanced, do benefit to the industrial production and use.

Referring to fig. 1 and 3, in this embodiment, an electromagnetic heating module 45 is further disposed on the mixing tank 41 to further assist in heating, so as to improve the steam production effect. This electromagnetic heating module 45 reduces heating power step by step at blending tank 41 in axial direction by inlet end 411 to the end 412 of giving vent to anger, cooperates first steam and the mixed order of flowing of atomizing water well, reaches auxiliary heating, guarantees the production of steam, and energy utilization is rateed highly, and energy-conserving effect is showing more. In this embodiment, the electromagnetic heating module 45 is formed by winding the mixing tank 41 with an electromagnetic coil, and the heating power is changed through the winding gap.

As shown in fig. 1 and 3, in this embodiment, the mixing tank 41, the air guide sleeve 421, the air inlet pipe 43 and the water inlet pipe 44 are coaxially arranged to form a mutually nested structure, which is compact in structure, small in volume, and stable and reliable in working performance; inlet tube 44 is inside to be extended in intake pipe 43, and inlet tube 44's atomizer 441 exposes intake pipe 43, guarantees that the atomized water evenly sprays and scatters to first steam heating vaporization by intake pipe 43 input forms second steam, and this structure helps the contact flash evaporation effect of first steam and atomized water, makes first steam and atomized water mix more evenly, and the second steam temperature, the pressure that produce are balanced, do benefit to the industrial production and use.

Referring to fig. 1 and 2, in the embodiment, the high-temperature thermal bath 3 includes a thermal insulation outer shell 31, a thermal storage inner core 32, and a heating element 33 and a heat exchanger 34 attached to the thermal storage inner core 32, where the thermal storage inner core 32 is made of a thermal storage material, such as a molten salt phase-change thermal storage material, a high-temperature metal or ceramic thermal storage material, and is suitable for thermal storage in a medium-high temperature field, so that a working gap can be fully utilized to store heat, and low-cost electric heating is adopted in a peak-shifting power utilization manner, thereby greatly reducing operating cost and ensuring normal operation. The heat-storage inner core 32 is wrapped by the heat-insulation shell 31, so that the heat-storage inner core is effectively protected, and heat loss is prevented. The input end of the heat exchanger 34 is connected with the heat preservation water tank 2, and the output end of the heat exchanger is connected with the steam generator 4; the hot water provided by the holding water tank 2 is subjected to heat energy through the heat exchanger 34 to produce the first steam. Further, the heat exchanger 34 in this embodiment is composed of a spiral pipe wound around the heat storage inner core 32, a high-pressure pump 51 and an automatic regulating valve 52 are arranged on a connecting pipeline between the heat exchanger 34 and the heat-preservation water tank 2, and the automatic regulating valve 52 is located at an output end of the high-pressure pump 51, so that the pressure of the first steam is effectively controlled, and the heat-preservation water tank has a simple structure and is stable and reliable in operation. In this embodiment, the heating element 33 is a carbon fiber heating tube, the heating element 33 is replaceably inserted into the insertion hole 321 of the heat storage inner core 32, and is convenient to assemble, disassemble and replace, and the heating element 33 is used for further heating to ensure the working temperature of the high-temperature heat pool, so as to obtain the required first steam.

While the preferred embodiments of the invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A heat storage type heat pump steam unit is characterized by comprising:

a heat pump unit (1),

the heat-preservation water tank (2), the heat-preservation water tank (2) is connected with the heat pump unit (1) to form a hot water supply system;

the high-temperature heat pool (3) is connected with the heat-preservation water tank (2) through a pipeline, so that the hot water provided by the heat-preservation water tank (2) is heated, and the high-temperature heat pool (3) works based on a heat storage mode to produce first steam;

the steam generator (4) is connected with the high-temperature heat pool (3), the steam generator (4) mixes first steam provided by the high-temperature heat pool (3) with atomized water to form second steam, and the temperature of the first steam is higher than that of the second steam.

2. The heat storage type heat pump steam unit according to claim 1, wherein the steam generator (4) has a mixing tank (41), and a diversion system (42) for guiding the mixed flow of the first steam and the atomized water is arranged in the mixing tank (41).

3. The heat storage type heat pump steam unit according to claim 2, wherein the mixing tank (41) is in the shape of a long tube, and the mixing tank (41) is provided with an air inlet end (411) and an air outlet end (412) in the axial direction; an air inlet pipe (43) and an water inlet pipe (44) are assembled at the air inlet end (411), one end of the air inlet pipe (43) is connected with the high-temperature heat pool (3), an air nozzle (431) is formed at the other end of the air inlet pipe (43), and the air nozzle (431) extends into the mixing tank (41) and extends towards the direction of the air outlet end (412); the end of the water inlet pipe (44) extending into the mixing tank (41) is provided with an atomizing nozzle (441), and the injection point of the atomizing nozzle (441) is closer to the air outlet end (412) relative to the air injection port (431) of the air inlet pipe (43); the flow guide system (42) comprises a flow guide cover (421) and a serpentine flow channel (422), the flow guide cover (421) guides atomized water sprayed by the atomizing nozzle (441) to be mixed with first steam sprayed by the air spraying port (431), the first steam and the atomized water are guided to be mixed and flow to the serpentine flow channel (422), and the tail end of the serpentine flow channel (422) is communicated with the air outlet end (412).

4. The heat storage type heat pump steam unit as claimed in claim 3, wherein the air guide sleeve (421) is a U-shaped long cylinder structure with one closed end, and the air guide sleeve (421) covers the air inlet pipe (43) and the water inlet pipe (44) in an inverted manner; the snakelike runner (422) is formed by matching a peripheral spiral groove of the air guide sleeve (421) with the inner wall of the mixing tank (41), and the opening end of the air guide sleeve (421) is communicated with the peripheral spiral groove of the air guide sleeve (421).

5. The heat storage type heat pump steam unit according to claim 2 or 3, wherein the mixing tank (41) is provided with an electromagnetic heating module (45), and the electromagnetic heating module (45) reduces the heating power step by step from the air inlet end (411) to the air outlet end (412) of the mixing tank (41) in the axial direction.

6. The thermal storage heat pump steam unit according to claim 3, characterized in that the mixing tank (41), the air guide sleeve (421), the air inlet pipe (43) and the water inlet pipe (44) are coaxially arranged, the water inlet pipe (44) extends inside the air inlet pipe (43), and the atomizer (441) of the water inlet pipe (44) is exposed out of the air inlet pipe (43).

7. The heat storage type heat pump steam unit as claimed in claim 1, wherein the high-temperature heat pool (3) comprises a heat-insulating outer shell (31), a heat-storing inner core (32), and a heating element (33) and a heat exchanger (34) which are attached to the heat-storing inner core (32), the heat-insulating outer shell (31) wraps the heat-storing inner core (32), the input end of the heat exchanger (34) is connected with the heat-insulating water tank (2), and the output end of the heat exchanger is connected with the steam generator (4); the hot water provided by the heat preservation water tank (2) obtains heat energy through the heat exchanger (34) to produce first steam.

8. The thermal storage heat pump steam unit according to claim 7, wherein the heating element (33) is a carbon fiber heating tube, and the heating element (33) is inserted into a predetermined insertion hole (321) of the heat storage core (32) in a replaceable manner.

9. The heat storage type heat pump steam unit as claimed in claim 7, wherein the heat exchanger (34) is formed by a spiral pipe wound on the heat storage inner core (32), a high-pressure pump (51) and an automatic regulating valve (52) are arranged on a connecting pipeline between the heat exchanger (34) and the heat preservation water tank (2), and the automatic regulating valve (52) is positioned at the output end of the high-pressure pump (51).