JPS58210463A - Absorption heat pump device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention utilizes waste steam discharged from equipment such as chemical processes as a heating source by circulating it through a generator and an evaporator.
The present invention relates to an improved structure of an absorption heat pump device that extracts heated fluid such as hot water at a temperature higher than the waste steam temperature from an absorber.

This type of absorption heat pump device has been attracting attention in recent years as a device that can effectively utilize waste steam containing chemical substances such as substances harmful to the human body to extract clean heated fluids such as hot water for heating. If there is no need to take out waste steam and the absorption heat pump device is not operated, the waste steam will be disposed of without being distributed to the generator and evaporator of the absorption heat pump device, causing problems such as thermal pollution and other pollution. There is a point.

Therefore, conventionally, a cooler for liquefying the waste steam has been separately provided, and the liquefied waste liquid has been stored in a container such as a capsule and transported to a waste liquid processing facility.

In view of these circumstances, the present invention provides an absorption heat pump device that does not require the cooler. That is,
In this type of absorption heat pump device, when the fluid to be heated is not taken out, the waste steam is made to flow only to the generator, and in the generator, the refrigerant is heated and separated from the absorption liquid by the heat of the waste steam. By adopting a configuration in which vapor is cooled and condensed in a condenser and the condensed refrigerant liquid is returned to the solution reservoir of the generator, it has the same function as the cooler.

Embodiments of the present invention will be described below with reference to the drawings.

(1) is a condenser that houses the cooling water pipe (2), and (3) is a fluid take-out pipe (4) that makes it possible to take out the heated fluid heated to a high temperature by the absorption heat of the absorption liquid from the limb pipe. Absorber (5) houses a heat source tube (6), causes waste steam to flow through the heat source tube, heats the absorption liquid with the heat of the waste steam, and separates the refrigerant. Generator (7) also houses the heat source tube. An evaporator that houses a pipe (6) and vaporizes the refrigerant using the heat of waste steam; (8) is a solution heat exchanger; Concentrate pipe (14) with refrigerant circuit 02 with refrigerant pump (11), solution pump 03 for resupplying the evaporator (power), replacement fluid down-flow pipe (
15), and performs an absorption heat pumping action by circulating the refrigerant and absorption liquid.

θ6) is a three-way valve installed at the connection with the heat source pipes (6) and (6), and (17) is a solution reservoir at the bottom of the generator (5) (IRI Hijikata's container body and refrigerant liquid pipe 0 ( )), connect the connected refrigerant liquid side pipe, or the replenishment liquid down pipe (15) and the concentrated liquid pipe (14) via the three-way valve (18) to the three-way valve +20.
A solution side pipe is connected through 1.

In addition, (21) is a control valve installed in the cooling water pipe, and this control valve operates the temperature controller (2: ()) according to the signal from the temperature detector (22).
The opening is controlled via.

Therefore, when there is no need to take out heated fluid such as hot water, the three-way valve 0(j) is connected to the generator (5) side and the evaporator (7) side.
) From the state where the side temperature was set to 50%, the individual generator (5) was fully opened, the evaporator (power side was switched to full volume, and the waste steam was allowed to flow only to the heat source pipe (6), and the three-way valve (National evaporator (
7) side and the generator (5) side from fully open and fully closed, respectively, to fully closed and fully open, respectively, as well as the absorber (3) side and generator (5) side of the three-way valve (2). The sides are switched from fully open and fully open to fully closed and fully open, respectively.

In this manner, by switching the opening and closing of the three-way valves 06), 1 and 2fl+, the refrigerant that has been heated and separated from the absorption liquid in the generator (5) using the heat of waste steam is cooled in the condenser (1). The water is condensed, and the refrigerant liquid is passed through the refrigerant liquid pipe (00) and the refrigerant liquid side pipe (17) to the generator (5) and the bottom solution reservoir (181).
The refrigerant flow path where the refrigerant is mixed with the absorption liquid again and the absorption liquid mixed with the condensed refrigerant liquid in the solution reservoir Oa are connected to the concentrated liquid pipe (
14), the solution passes through the solution side pipe (1) and the replacement fluid flow down pipe (15), reaches the heat source pipe (6), and after being concentrated by the heat of waste steam,
As a result, the heat of the waste steam is transferred to the generator (5) and the condenser (5).
1) into the cooling water flowing in the cooling water pipe (2), and the waste steam is liquefied.

In addition, if it is necessary to increase the amount of heat radiation due to an increase in the waste steam temperature, increase the opening of the control valve Gl according to the signal from the temperature detector It is preferable to increase the number by 1.

As described above, the absorption heat pump device of the present invention radiates the heat of waste steam to cooling water via the generator and condenser when the fluid to be heated is not needed. It is practically useful because waste steam can be liquefied without the need for a cooler like in the device σ.

[Brief explanation of the drawing]

The drawings are schematic diagrams of circuit configurations showing embodiments of the present invention.

Claims (1)

[Claims] (1) Cooling water is made to flow through the condenser, waste steam is supplied to the evaporator and generator, and heated fluid with a temperature higher than the waste steam temperature is taken out from the absorber. An absorption heat pump device having a heat exchanger and a solution heat exchanger connected via piping is provided with a switching mechanism that allows waste steam to flow only through the heat source tube housed in the generator at °C, and the waste steam is guided from the condenser to the evaporator. A refrigerant flow path with a switching mechanism that leads the condensed refrigerant liquid to a solution reservoir at the bottom of the generator, and a switch that allows the absorption liquid led from the solution reservoir to the absorber to be dispersed to a heat source tube housed in the generator and refluxed to the solution reservoir. An absorption heat pump device characterized by forming a solution circulation path with a mechanism.