Multi-zone large-temperature-difference unit

Abstract

The utility model discloses a kind of multi-partition large temperature difference unit, it is characterized by, including plate heat exchanger, absorption heat pump, water tank, plate heat exchanger includes first interface, second interface, third interface, fourth interface, absorption heat pump includes generator, condenser, first absorber, second absorber, first evaporator, second evaporator. By different heat supply partition's supply and return water is connected with unit through pipeline, sufficiently utilize the temperature difference of plate heat exchanger and absorption heat pump different components, the synchronous heat supply of different partition is realized. The utility model is connected and heat source matching by pipeline, realizes the multi-partition synchronous heat supply of different heat supply demand in low pressure area, low pressure area, medium pressure area, high pressure area etc. in heat station, reduce the complexity of heating system, improve equipment utilization, effectively improve heating efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heating, and in particular relates to a multi-zone large temperature difference unit. Background Technology

[0002] In centralized heating systems, a single heating station often serves multiple heat users. These users are further divided into zones with different temperature requirements, such as wall heating or underfloor heating, depending on their heating method. Therefore, the heating station needs to simultaneously meet the heating demands of these different zones. This necessitates the use of multiple conventional heat exchangers with large temperature differences, which not only increases system complexity and reduces operational reliability but also results in low utilization of individual units, leading to wasted investment.

[0003] Therefore, it is particularly important to propose a multi-zone, large temperature difference unit that can simultaneously meet the heating needs of different zones in actual heating regulation. The multi-zone, large temperature difference unit proposed in this invention meets the heating needs of different zones in a heating station simultaneously with a single device, effectively improving heating efficiency. Utility Model Content

[0004] (a) Purpose of the utility model The purpose of this invention is to provide a large temperature difference unit that can meet the temperature requirements of different heating zones and achieve simultaneous heating of multiple zones.

[0005] (II) Technical Solution To address the aforementioned problems, this utility model provides a multi-zone large temperature difference unit, including a plate heat exchanger and an absorption heat pump. The plate heat exchanger includes a first interface, a second interface, a third interface, and a fourth interface, while the absorption heat pump includes a generator, a condenser, a first absorber, a second absorber, a first evaporator, and a second evaporator.

[0006] The return water from the low-pressure area is connected to the inlet of the second absorber of the absorption heat pump via a water pump. The outlet of the second absorber of the absorption heat pump is connected to the inlet of the first absorber of the absorption heat pump. The outlet of the first absorber of the absorption heat pump is connected to the water supply from the low-pressure area.

[0007] The return water from the medium- and high-pressure zone is connected to the first interface of the plate heat exchanger via a water pump, and the second interface of the plate heat exchanger is connected to the water supply from the medium- and high-pressure zone.

[0008] The high-pressure zone return water is connected to the inlet of the absorption heat pump condenser via a water pump, and the outlet of the absorption heat pump condenser is connected to the high-pressure zone water supply.

[0009] The primary water inlet is connected to the inlet of the generator of the absorption heat pump, the outlet of the generator of the absorption heat pump is connected to the third interface of the plate heat exchanger, the fourth interface of the plate heat exchanger is connected to the inlet of the first evaporator of the absorption heat pump, the outlet of the first evaporator of the absorption heat pump is connected to the inlet of the second evaporator of the absorption heat pump, and the outlet of the second evaporator of the absorption heat pump is connected to the primary water outlet.

[0010] Furthermore, the return water from the low-pressure area is connected to the inlet of the second absorber of the absorption heat pump via a water pump, and the outlet of the second absorber of the absorption heat pump is connected to the water supply from the low-pressure area. The return water from the medium-low pressure area is connected to the inlet of the first absorber of the absorption heat pump via a water pump, and the outlet of the first absorber of the absorption heat pump is connected to the water supply from the medium-low pressure area.

[0011] Furthermore, it also includes a water tank and a first connecting pipe. The water tank is connected to the inlet of the second absorber of the absorption heat pump via the first connecting pipe.

[0012] Further, it includes a second connecting pipe. The outlet of the second absorber of the absorption heat pump is connected to the inlet of the first absorber of the absorption heat pump via the second connecting pipe.

[0013] Furthermore, it also includes a third connecting pipe. The outlet of the first absorber of the absorption heat pump is connected to the first interface of the plate heat exchanger through the third connecting pipe.

[0014] Furthermore, it also includes a fourth connecting pipe. The second interface of the plate heat exchanger is connected to the inlet of the condenser of the absorption heat pump via the fourth connecting pipe.

[0015] (III) Beneficial Effects The above-mentioned technical solution of this utility model has the following beneficial technical effects: This utility model utilizes a single large temperature difference unit, and through pipeline connection and heat source matching, realizes multi-zone synchronous heating for different heating needs such as low-pressure zone, medium-low pressure zone, medium pressure zone, and high pressure zone of the heating station, which reduces the complexity of the heating system, improves equipment utilization, and effectively improves heating efficiency. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0017] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0018] Figure 3 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0019] Figure label: 1: Plate heat exchanger; 101: First interface; 102: Second interface; 103: Third interface; 104: Fourth interface; 2: Absorption heat pump; G: Generator; G01: Generator inlet; G02: Generator outlet; C: Condenser; C01: Condenser inlet; C02: Condenser outlet; A1: First absorber; A11: First absorber inlet; A12: First absorber outlet; A2: Second absorber; A21: Second absorber inlet; A22: Second absorber outlet; E1: First evaporator; E11: First evaporator inlet; E12: First evaporator outlet; E2: Second evaporator; E21: Second evaporator inlet; E22: Second evaporator outlet; 3: Water tank; 4: First connecting pipe; 5: Second connecting pipe; 6: Third connecting pipe; 7: Fourth connecting pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0022] like Figure 1 As shown, a multi-zone large temperature difference unit includes a plate heat exchanger 1 and an absorption heat pump 2. The plate heat exchanger 1 includes a first interface 101, a second interface 102, a third interface 103, and a fourth interface 104. The absorption heat pump 2 includes a generator G, a condenser C, a first absorber A1, a second absorber A2, a first evaporator E1, and a second evaporator E2.

[0023] The return water from the low-pressure zone is connected to the inlet A21 of the second absorber A2 of the absorption heat pump 2 via a water pump. The outlet A22 of the second absorber A2 of the absorption heat pump 2 is connected to the inlet A11 of the first absorber A1 of the absorption heat pump 2. The outlet A12 of the first absorber A1 of the absorption heat pump 2 is connected to the water supply from the low-pressure zone.

[0024] The return water from the medium-pressure zone is connected to the first port 101 of the plate heat exchanger 1 via a water pump, and the second port 102 of the plate heat exchanger 1 is connected to the water supply from the medium-pressure zone.

[0025] The high-pressure zone return water is connected to the inlet CO1 of the condenser C of the absorption heat pump 2 via a water pump, and the outlet CO2 of the condenser C of the absorption heat pump 2 is connected to the high-pressure zone water supply.

[0026] The primary water inlet is connected to the inlet G01 of the generator G of the absorption heat pump 2. The outlet G02 of the generator G of the absorption heat pump 2 is connected to the third interface 103 of the plate heat exchanger 1. The fourth interface 104 of the plate heat exchanger 1 is connected to the inlet E11 of the first evaporator E1 of the absorption heat pump 2. The outlet E12 of the first evaporator E1 of the absorption heat pump 2 is connected to the inlet E21 of the second evaporator E2 of the absorption heat pump 2. The outlet E22 of the second evaporator E2 of the absorption heat pump 2 is connected to the primary water outlet.

[0027] Example 1 is applicable to a scenario where the heat exchange station has three heating zones: a low-pressure zone, a medium-pressure zone, and a high-pressure zone. Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0028] The difference from Example 1 is that in Example 2, as... Figure 2 As shown, the return water from the low-pressure zone is connected to the inlet A21 of the second absorber A2 of the absorption heat pump 2 via a water pump, and the outlet A22 of the second absorber A2 of the absorption heat pump 2 is connected to the water supply from the low-pressure zone.

[0029] The return water from the medium and low pressure zone is connected to the inlet A11 of the first absorber A1 of the absorption heat pump 2 via a water pump, and the outlet A12 of the first absorber A1 of the absorption heat pump 2 is connected to the water supply from the medium and low pressure zone.

[0030] Example 2 is applicable to a scenario where the heat exchange station has four heating zones, namely the low-pressure zone, the medium-low-pressure zone, the medium-pressure zone, and the high-pressure zone. Figure 3 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0031] The difference from Embodiment 2 is that the multi-zone large temperature difference unit shown in this embodiment also includes: water tank 3, first connecting pipe 4, second connecting pipe 5, third connecting pipe 6, and fourth connecting pipe 7.

[0032] The water tank 3 is connected to the inlet A21 of the second absorber A2 of the absorption heat pump 2 via the first connecting pipe 4.

[0033] The outlet A22 of the second absorber A2 of the absorption heat pump 2 is connected to the inlet A11 of the first absorber A1 of the absorption heat pump 2 through the second connecting pipe 5.

[0034] The outlet A12 of the first absorber A1 of the absorption heat pump 2 is connected to the first interface 101 of the plate heat exchanger 1 through the third connecting pipe 6.

[0035] The second port 102 of the plate heat exchanger 1 is connected to the inlet CO1 of the condenser C of the absorption heat pump 2 through the fourth connecting pipe 7.

[0036] This embodiment achieves constant pressure and water replenishment for the supply and return water pipelines in different zones by setting up water tank 3, first connecting pipe 4, second connecting pipe 5, third connecting pipe 6, and fourth connecting pipe 7, thus ensuring more stable operation of the heating system.

Claims

1. A multi-zone large temperature difference unit, characterized in that, Including plate heat exchangers (1) and absorption heat pumps (2); The plate heat exchanger (1) includes a first interface (101), a second interface (102), a third interface (103), and a fourth interface (104). The absorption heat pump (2) includes a generator (G), a condenser (C), a first absorber (A1), a second absorber (A2), a first evaporator (E1), and a second evaporator (E2). The return water in the low-pressure area is connected to the second absorber inlet (A21) of the second absorber (A2) of the absorption heat pump (2) via a water pump. The second absorber outlet (A22) of the second absorber (A2) of the absorption heat pump (2) is connected to the first absorber inlet (A11) of the first absorber (A1) of the absorption heat pump (2). The first absorber outlet (A12) of the first absorber (A1) of the absorption heat pump (2) is connected to the water supply in the low-pressure area. The return water from the medium-pressure zone is connected to the first interface (101) of the plate heat exchanger (1) via a water pump, and the second interface (102) of the plate heat exchanger (1) is connected to the water supply from the medium-pressure zone. The high-pressure zone return water is connected to the condenser inlet (C01) of the condenser (C) of the absorption heat pump (2) via a water pump, and the condenser outlet (C02) of the condenser (C) of the absorption heat pump (2) is connected to the high-pressure zone water supply. The primary water inlet is connected to the generator inlet (G01) of the generator (G) of the absorption heat pump (2), the generator outlet (G02) of the generator (G) of the absorption heat pump (2) is connected to the third interface (103) of the plate heat exchanger (1), the fourth interface (104) of the plate heat exchanger (1) is connected to the first evaporator inlet (E11) of the first evaporator (E1) of the absorption heat pump (2), the first evaporator outlet (E12) of the first evaporator (E1) of the absorption heat pump (2) is connected to the second evaporator inlet (E21) of the second evaporator (E2) of the absorption heat pump (2), and the second evaporator outlet (E22) of the second evaporator (E2) of the absorption heat pump (2) is connected to the primary water outlet.

2. A multi-zone large temperature difference unit, characterized in that, Including plate heat exchangers (1) and absorption heat pumps (2); The plate heat exchanger (1) includes a first interface (101), a second interface (102), a third interface (103), and a fourth interface (104). The absorption heat pump (2) includes a generator (G), a condenser (C), a first absorber (A1), a second absorber (A2), a first evaporator (E1), and a second evaporator (E2). The return water from the low-pressure area is connected to the inlet (A21) of the second absorber (A2) of the absorption heat pump (2) via a water pump, and the outlet (A22) of the second absorber (A2) of the absorption heat pump (2) is connected to the water supply from the low-pressure area. The return water from the medium and low pressure zone is connected to the first absorber inlet (A11) of the first absorber (A1) of the absorption heat pump (2) via a water pump, and the first absorber outlet (A12) of the first absorber (A1) of the absorption heat pump (2) is connected to the water supply from the medium and low pressure zone. The return water from the medium-pressure zone is connected to the first interface (101) of the plate heat exchanger (1) via a water pump, and the second interface (102) of the plate heat exchanger (1) is connected to the water supply from the medium-pressure zone. The high-pressure zone return water is connected to the condenser inlet (C01) of the condenser (C) of the absorption heat pump (2) via a water pump, and the condenser outlet (C02) of the condenser (C) of the absorption heat pump (2) is connected to the high-pressure zone water supply. The primary water inlet is connected to the generator inlet (G01) of the generator (G) of the absorption heat pump (2), the generator outlet (G02) of the generator (G) of the absorption heat pump (2) is connected to the third interface (103) of the plate heat exchanger (1), the fourth interface (104) of the plate heat exchanger (1) is connected to the first evaporator inlet (E11) of the first evaporator (E1) of the absorption heat pump (2), the first evaporator outlet (E12) of the first evaporator (E1) of the absorption heat pump (2) is connected to the second evaporator inlet (E21) of the second evaporator (E2) of the absorption heat pump (2), and the second evaporator outlet (E22) of the second evaporator (E2) of the absorption heat pump (2) is connected to the primary water outlet.

3. A multi-zone large temperature difference unit as described in claim 2, characterized in that, Also includes: Water tank (3), first connecting pipe (4); The water tank is connected to the second absorber inlet (A21) of the second absorber (A2) of the absorption heat pump (2) through the first connecting pipe (4).

4. A multi-zone large temperature difference unit as described in claim 2, characterized in that, Also includes: Second connecting pipe (5); The second absorber outlet (A22) of the second absorber (A2) of the absorption heat pump (2) is connected to the first absorber inlet (A11) of the first absorber (A1) of the absorption heat pump (2) through the second connecting pipe (5).

5. A multi-zone large temperature difference unit as described in claim 2, characterized in that, Also includes: Third connecting pipe (6); The first absorber outlet (A12) of the first absorber (A1) of the absorption heat pump (2) is connected to the first interface (101) of the plate heat exchanger (1) through the third connecting pipe (6).

6. A multi-zone large temperature difference unit as described in claim 2, characterized in that, Also includes: Fourth connecting pipe (7); The second port (102) of the plate heat exchanger (1) is connected to the condenser inlet (C01) of the condenser (C) of the absorption heat pump (2) through the fourth connecting pipe (7).

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