CN212409130U

CN212409130U - Plate-type heating absorption heat pump unit

Info

Publication number: CN212409130U
Application number: CN202021440291.3U
Authority: CN
Inventors: 谷再丰; 黄国华; 李绍飞; 赵金姊; 孙文倩; 赵敏思
Original assignee: Tongfang Energy Saving Engineering Technology Co ltd
Current assignee: Tongfang Energy Saving Engineering Technology Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-01-26
Anticipated expiration: 2030-07-21

Abstract

A plate-type heating absorption heat pump unit relates to the technical field of energy. The evaporator, the plate generator and the condenser form a low-temperature cylinder body; the absorber constitutes a high-temperature cylinder. The inner loop is divided into a solution circulation loop and a refrigerant circulation loop, and the solution circulation loop circularly reciprocates after sequentially passing through an absorber, a liquid heat exchanger, a plate generator, a flash evaporation cavity of a condenser and the liquid heat exchanger; the refrigerant circulation loop is from the condenser to the evaporator, and self-circulates in the evaporator. The external loop of the unit is divided into a medium 1 loop, a medium 2 loop and a medium 3 loop, wherein the medium 1 loop discharges heat through the plate generator and then flows out of the unit, the medium 1 loop also cools through the evaporator and then flows out of the unit, the medium 2 loop is heated through the absorber and then flows out of the unit, and the medium 3 loop exchanges heat through the condenser and then flows out of the unit. The utility model discloses can realize multiple type of heat source drive, realize having the characteristics of simplifying outside heat transfer system and constituting, reduce heat transfer and investment running cost to the steady heating of multiple type of medium.

Description

Plate-type heating absorption heat pump unit

Technical Field

The utility model relates to an energy technical field, especially can be used to the type of heating absorption heat pump unit under multiple heat source, the surplus heat source medium. The waste heat of various fluids such as hot water, hot oil, flue gas, steam, exhaust steam, hot air and the like can be utilized, and stable heating of various media is realized.

Background

In the prior art, a temperature-raising absorption heat pump is usually driven only by a single heat source, or can be driven by multiple heat sources after being modified. However, there are strict requirements on the fluid to be heated or cooled, such as water quality. And the generator in the heat pump generally adopts shell and tube heat exchanger, has had the condition that bulky, heat exchange efficiency is low, and the cost is higher. The existing heating absorption heat pump unit is not suitable for the heat utilization condition under multiple heat sources and multiple media in the wide industrial, civil and commercial fields of China.

Disclosure of Invention

To the deficiency that exists among the above-mentioned prior art, the utility model aims at providing a board-like type absorption heat pump unit that rises temperature. The multi-type medium heating device can realize the driving of various heat sources, realize the stable heating of various media, and has the characteristics of simplifying the constitution of an external heat exchange system and reducing the heat exchange and investment operation costs.

The plate type heating absorption heat pump unit includes absorber, evaporator, condenser, plate generator and solution heat exchanger. The structure is characterized in that the evaporator, the plate generator and the condenser form a low-temperature cylinder; the absorber constitutes a high-temperature cylinder. The internal loop of the unit is divided into a solution circulation loop and a refrigerant circulation loop, and the solution circulation loop circularly reciprocates through an absorber, a liquid heat exchanger, a plate generator, a flash evaporation cavity of a condenser and the liquid heat exchanger in sequence; the refrigerant circulation loop is from the condenser to the evaporator, and self-circulates in the evaporator. The external loop of the unit is divided into a medium 1 loop, a medium 2 loop and a medium 3 loop, wherein the medium 1 loop discharges heat through the plate generator and then flows out of the unit, the medium 1 loop is cooled through the evaporator and then flows out of the unit, the medium 2 loop is heated through the absorber and then flows out of the unit, and the medium 3 loop exchanges heat through the condenser and then flows out of the unit.

In the plate-type heating absorption heat pump unit, the medium 1 is a driving heat source, and the driving heat source adopts steam or hot water, and the temperature range is 48-200 ℃.

In the plate-type heating absorption heat pump unit, a power device is arranged between the heat exchangers according to requirements.

In the plate-type heating absorption heat pump unit, the heat source side adjusts the series-parallel connection structure as required.

The utility model discloses owing to adopted above-mentioned structure, given and used the method between many heat sources with current conventional temperature-raising type absorption heat pump repacking to realized the direct utilization to multiple heat source, very big promotion heat exchange efficiency, widened temperature-raising type absorption heat pump's application field simultaneously.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the embodiment of the present invention with a heat increasing circulation device added.

Detailed Description

Referring to fig. 1, the plate-type heat absorption heat pump unit of the present invention includes an absorber a, an evaporator E, a condenser C, a plate-type generator HEX-G, and a solution heat exchanger HEX. The evaporator E, the plate generator HEX-G and the condenser C form a low-temperature cylinder; the absorber A constitutes a high-temperature cylinder. The internal loop of the unit is divided into a solution circulation loop and a refrigerant circulation loop, and the solution circulation loop passes through a flash evaporation cavity of the absorber A, the liquid heat exchanger HEX, the plate-type generator HEX-G and the condenser C and the liquid heat exchanger HEX in sequence and circulates back and forth. The refrigerant circulation circuit is self-circulating from the condenser C to the evaporator E. The external loop of the unit is divided into a medium 1 loop, a medium 2 loop and a medium 3 loop, wherein the medium 1 loop discharges heat through a plate generator HEX-G and then flows out of the unit, the medium 1 loop is cooled through an evaporator E and then flows out of the unit, the medium 2 loop is heated through an absorber A and then flows out of the unit, and the medium 3 loop exchanges heat through a condenser C and then flows out of the unit. The medium 1 is a driving heat source, the driving heat source adopts steam or hot water, and the temperature range is 48-200 ℃.

Referring to fig. 2, on the basis of fig. 1 of the present invention, the internal heat-increasing circulation device includes a low-temperature absorber AL, a low-temperature evaporator EL, a low-temperature solution heat exchanger HEX-L, a high-temperature evaporator EH, a high-temperature absorber AH, and a high-temperature solution heat exchanger HEX-H, and simultaneously optimizes the solution circulation and the refrigerant circulation to realize the step temperature rise.

The utility model discloses an among the above-mentioned structure, can carry out plate heat transfer design to whole absorber A (high temperature absorber AH, low temperature absorber AL), evaporimeter E (high temperature evaporator EH, low temperature evaporator EL) and condenser C according to actual need, perhaps only carry out plate-type design to wherein 1 or a plurality of heat exchangers, make and implement the effect and reach the optimum.

Claims

1. The plate-type heating absorption heat pump unit comprises an absorber (A), an evaporator (E), a condenser (C), a plate-type generator (HEX-G) and a solution Heat Exchanger (HEX); the low-temperature evaporator is characterized in that the evaporator (E), the plate generator (HEX-G) and the condenser (C) form a low-temperature cylinder; the absorber (A) forms a high-temperature cylinder body; the internal loop of the unit is divided into a solution circulation loop and a refrigerant circulation loop, wherein the solution circulation loop passes through a flash evaporation cavity of an absorber (A), a liquid Heat Exchanger (HEX), a plate generator (HEX-G) and a condenser (C) and the liquid Heat Exchanger (HEX) in sequence and is in circulation reciprocating; the refrigerant circulation loop is from the condenser (C) to the evaporator (E), and the evaporator (E) is internally self-circulated; the external loop of the unit is divided into a medium 1 loop, a medium 2 loop and a medium 3 loop, wherein the medium 1 loop discharges heat through a plate generator (HEX-G) and then flows out of the unit, the medium 1 loop further cools through an evaporator (E) and then flows out of the unit, the medium 2 loop is heated through an absorber (A) and then flows out of the unit, and the medium 3 loop exchanges heat through a condenser (C) and then flows out of the unit.

2. The plate-type heating absorption heat pump unit according to claim 1, wherein the medium 1 is a driving heat source, and the driving heat source is steam or hot water, and the temperature range is 48-200 ℃.

3. The plate-type heating absorption heat pump unit according to claim 1 or 2, wherein a power plant is provided between the heat exchangers as required.