CN200996677Y

CN200996677Y - Hot-water centralized heat supplier by hot-pump technology and related apparatus

Info

Publication number: CN200996677Y
Application number: CN 200620147360
Authority: CN
Inventors: 冯太和
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-02
Filing date: 2006-11-02
Publication date: 2007-12-26
Anticipated expiration: 2016-11-02

Abstract

A hot water central heating supply device adopting heat pump technologies and relative equipments is characterized in that: a heat supply station (9) of the heat pump comprises a heat exchanger (12), a circulation pump (13), an evaporator (14), a compressor (15), a condenser (16), an expansion throttle valve (17), a circulation pump (18), level one pipe network water return pipeline (6) and a level two pipe network water supply pipeline; one end of the heat exchanger (12) is connected with the water return pipeline (6) of the level one pipe network while the other end is connected with one end of the evaporator (14) through a pipeline, the pipeline is connected with a heat user (19) and the circulation pump (13); the other end of the evaporator is connected with one end of the condenser (16) through a pipeline, the linked pipeline is separately provided with the compressor (15) and the expansion throttle valve (17); the other end of the condenser is linked with the heat user (10) and the linked pipeline is provided with the circulation pump (18).

Description

Adopt the hot water central heating device of heat pump techniques and relevant device thereof

Affiliated technical field

The utility model relates to the centralized heating project technical field, especially adopts the hot water central heating device of heat pump technical principle and relevant device thereof.

Background technology

At present, known hot water centralized heating project mainly by: thermal source, heat exchange station, first-level pipeline network, secondary network and hot user form.

The kind of thermal source has respectively with the steam power plant to be thermal source and to be two kinds of forms of thermal source with regional boiler captive, all is to obtain the thermal source that heat energy is used for central heating by boiler combustion coal, oil, natural gas.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiency of at present existing central heating, for the hot water central heating provides a kind of new thermal source, need not build new heating boiler room, different coal, oil, the natural gases of consuming, improve the heat energy utilization rate, need not discharge slag, CO ₂Harmful wastes such as gas enlarge Areas benefiting from central heating and heat capacity.

The technical scheme in the invention for solving the technical problem is:

Among hot water central heating device, be provided with the heat pump station; Adopt heat pump techniques and relevant device thereof, extract and reclaim the low temperature heat energy that contains in the low-temperature water source (industrial circulating cooling water, industrial wastewater, underground water, oil field reinjection water, municipal sewage), and,, directly carry to be the user heating heat supply by the central heating pipe network with its lifting temperature.On this basis, the heat supply return pipe net is provided with the heat pump heat supply station, extracts and reclaims the low temperature heat energy that contains in the return pipe net, can continue as user's central heating heat supply.

In newly-built centralized heating project, implement the utility model device, can build the boiler room, need not consume coal, oil, natural gas.In the hot water centralized heating project that has built up, increase the utility model device, can make full use of the pipe network system of having built up, the expense of reducing investment outlay enlarges Areas benefiting from central heating and heat capacity significantly.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is present representative hot water central heating structural representation.

Fig. 2 is the utility model example structure schematic diagram.

Fig. 3 adopts the utility model embodiment device structural representation in the hot water central heating of having built up.

Fig. 4 is the utility model embodiment device structural representation that adopts the absorption type heat pump assembly.

Fig. 5 is a heat pump station example structure schematic diagram.

Fig. 6 is a heat pump heat supply station example structure schematic diagram.

Among the figure 1, steam power plant or regional heating boiler room, 2, heat exchange station, 3, hot user, 4, the first-level pipeline network water supply line, 5, the secondary network water supply line, 6, the first-level pipeline network water return pipeline, 7, the secondary network water return pipeline, 8, the first-level pipeline network water return pipeline, 9, the heat pump heat supply station, 10, hot user, 11, the heat pump station, 12, heat exchanger, 13, circulating pump, 14, evaporimeter, 15, compressor, 16, condenser, 17, the expansion throttling valve, 18, circulating pump, 19, hot user, 20, heat exchanger, 21, circulating pump, 22, evaporimeter, 23, compressor, 24, condenser, 25, the expansion throttling valve, 26, the low-temperature water source pipeline, 27, power supply or steam source, 28, the heat pump station, 29, the heat pump station, 30, steam and condensing water conduit, 31, water circulating pump.

Shown in Figure 1, at present present hot water centralized heating project, form one-level circulation water for heating pipe network system by steam power plant or boiler room 1, heat exchange station 2, water supply line 4 and water return pipeline 6.It is characterized in that: feed temperature is 95～110 ℃, and return water temperature is 50～70 ℃.The a large amount of low temperature heat energies that contain in the return pipe net are not fully used, and this part heat energy all is returned to steam power plant or boiler room, can produce a lot of heat-energy losses wasting phenomenons in the course of conveying yet.

Shown in Figure 2 is the utility model embodiment device structural representation, it is characterized in that:

1, is provided with heat pump heat supply station 9 and heat pump station 28 in the device;

2, heat pump heat supply station 9 is extracted and is reclaimed the low temperature heat energy that contains in the return pipe net 6, and after promoting temperature, is user's 10 heat supplies.Can reduce the circulating backwater temperature in the return pipe net 6 (minimum drop to 5 ℃);

3, heat pump station 28 can be extracted and be reclaimed the low temperature heat energy that contains in the low-temperature water source (industrial circulating water, trade effluent, oil field reinjection water, underground water, municipal sewage), after the temperature by heat exchanger or the feedwater of source pump lifting circulation heating, be central heating user heat supply.

4, heat pump station 28 can be selected the compression type heat pump assembly of Electric Traction for use, and also can adopt steam source is the absorption type heat pump assembly of power.

5, when heat pump station 28 can promote temperature＞60 ℃ to heat supply feedwater, also heat pump heat supply station 9 can be set, adopt heat pump station 28 that heating recirculated water directly is provided, be user's 3,10 direct heatings.

Shown in Figure 3 is to adopt the utility model embodiment device structural representation in the centralized heating project that has built up.

In the centralized heating project that has built up, set up heat pump heat supply station 9, heat pump station 11.One-level heating network return water temperature is reduced (minimum drop to 5 ℃), the low temperature heat energy that is contained as far as possible all is used to hot user's 10 heatings.Be fully utilized and reduced the first-level pipeline network backwater of temperature, by 11 heating of heat pump station and promote temperature, turned back to steam power plant or boiler room and continue to be heated, it is characterized in that by former technological process:

1, can extract the low temperature heat energy that contains in the former first-level pipeline network heat supply backwater of recovery, promote temperature, be user's 10 heatings, can enlarge the area of heat-supply service and the heat capacity of original central heating system significantly by source pump;

2, can drop to 5 ℃ the temperature of former first-level pipeline network heat supply backwater is minimum, heat energy fully obtains utilizing, and reduces the loss and waste in the hot course of conveying;

3, can lay the central heating first-level pipeline network again, make full use of the pipe network that has built up, enlarge heat capacity, reduce the cost of investment expense.

Shown in Figure 4 is to adopt in the utility model device, and adopting heat pump station 29 directly is the embodiment device structural representation of user's 3 heatings.It is characterized in that:

1, in this device heat pump heat supply station 9 need not be set, directly be hot user's 3 heatings but adopt heat pump station 29;

2, the absorption type heat pump assembly can be adopted in the heat pump station, is power source with steam, can reduce the operation of heat pump cost, also can adopt electronic compression type heat pump assembly, improves heating efficiency, and operational management is more convenient;

3, the low-temperature water source of source pump should be selected the industrial circulating cooling water of power plant, steam power plant, petroleum refinery and large chemical plant for use, stability of flow, temperature height, can significantly improve the heating efficiency of source pump, the temperature of heat supply water also can improve, and helps the central heating device and normally moves.

Shown in Figure 5 is heat pump station 11,28 example structure schematic diagrames.It is characterized in that:

What 1, the heat pump station was selected for use is electronic compression type heat pump assembly, and every consumption 1kw electric energy can be made the heat energy of 4kw;

2, the low-temperature water source of source pump, selectivity ratios is more extensive, and the temperature height is not affected substantially;

3, simple in structure, operational management is convenient.

Shown in Figure 6 is heat pump heat supply station 9 example structure schematic diagrames.It is characterized in that:

1, adopt the compression type heat pump assembly to reduce the heat supply return water temperature in the circulation heating return pipe net 6, minimumly drop to 5 ℃, the low temperature heat energy that wherein contains is extracted as far as possible and reclaims and utilize;

2, when heat supply return water temperature＞40 in the heat supply water return pipeline 6 ℃, can directly recycle low temperature heat energy by heat exchanger 12, directly be user's 19 heatings;

3, when heat supply return water temperature＜40 in the heat supply water return pipeline 6 ℃, can cancel heat exchanger 12 and circulating pump 13, can not be user's 19 direct heatings, but heat supply water return pipeline 6 and evaporimeter 14 are directly linked, extract the low temperature heat energy that contains in the recovery water return pipeline 6 with source pump, promoting temperature is the user heating heat supply afterwards again.

The beneficial effect of the utility model Zhuan Zhi is:

1, adopt source pump to extract the low temperature heat energy of low-temperature water source Zhong, promote Wen Du, Yong the Yu central heating, Developed the thermal source approach of Yi Zhong Xin Wei centralized heating project.

2, the centralized heating project Zhong that builds up of Zai Yi adopts the utility model Zhuan Zhi, can improve heat utilization rate, Reduce heat energy course of conveying Zhong loss and waste, enlarge heat capacity, the reduce cost cost.

3, can fully recycle the low temperature heat energy of the various low-temperature water sources that Zhou surrounding environment Zhong exists, Yong the Yu collection The Zhong heating need not be built the heating boiler room of Xin, without Xiao consumption coal, You, natural gas.

4, less electric energy or the steam thermal energy of consumption rate can be got the Yu central heating of many heat energy by Zhi, Can reduce central heating operating cost.

Claims

1, the hot water central heating device of a kind of using heat pump technology and relevant device thereof, it is characterized in that: heat pump heat supply station (9) are by heat exchanger (12), circulating pump (13), evaporimeter (14), compressor (15), condenser (16), expansion throttling valve (17), circulating pump (18), and first-level pipeline network water return pipeline (6) and secondary network water supply line are formed; One end of heat exchanger (12) is connected with first-level pipeline network water return pipeline (6), and the other end links to each other by the end of pipeline with evaporimeter (14), is connected with hot user (19) and circulating pump (13) on pipeline; The other end of evaporimeter (14) links to each other by the end of pipeline with condenser (16), is respectively equipped with compressor (15) and expansion throttling valve (17) on the pipeline that is communicated with; The other end of condenser is communicated with hot user (10), is provided with circulating pump (18) on connecting pipe.

2, device according to claim 1 is characterized in that: heat pump station (11,28) are made up of heat exchanger (20), circulating pump (21), evaporimeter (22), compressor (23), condenser (24), expansion throttling valve (25), low-temperature water source pipeline (26) and circulation water for heating pipeline (6,8); One end of heat exchanger (20) links to each other with low-temperature water source by low-temperature water source pipeline (26), and the other end links to each other by the end of pipeline with evaporimeter (22), is provided with circulating pump (21) on pipeline; The other end of evaporimeter (22) links to each other by the end of pipeline with condenser (24), is respectively equipped with compressor (23) and expansion throttling valve (25) on the pipeline that is communicated with; The other end of condenser (24) links to each other with circulation water for heating pipeline (6,8).