WO2010140995A1

WO2010140995A1 - Multi-purpose power module

Info

Publication number: WO2010140995A1
Application number: PCT/UA2010/000016
Authority: WO
Inventors: Анатолий Юрьевич ГАЛЕЦКИЙ
Original assignee: Galetskij Anatolij Jurevich
Priority date: 2009-06-04
Filing date: 2010-04-06
Publication date: 2010-12-09

Abstract

The invention relates to heat power engineering, in particular to combined cooling and heating systems, and can be used as a self-contained power apparatus for simultaneously producing heat and cold. The essence of the invention is that in a multi-purpose power module comprising a cryogenic refrigerator, the cryogenic refrigerator is additionally provided with a heat pump which shares a heat exchanger with the cryogenic refrigerator. The technical effect is that heat energy can be supplied to the industrial and domestic sectors through the use of heat from a cryogenic refrigerator without the production of harmful emissions.

Description

UNIVERSAL POWER MODULE

The invention relates to a power system, namely, to combined systems for cooling and heating, and can be used as an autonomous power plant for the simultaneous production of heat and cold.

Known air cooling and heating installation, including a compressor, an expander and included between them through the compressed air supply channel, the main and additional air heat exchangers. Moreover, the main heat exchanger is connected to the fan through the atmospheric air supply channel, and the additional one to the oil cooling circuit [see autosvid. USSR Jfe 606049, MIJ ³ F25B 29/00, publ. 1978, bull. W shch

The main disadvantage of the installation is that due to imperfect heat exchange in the heat exchangers, cold and heat production are reduced. Also, in the air heating mode, the heat energy of a high-potential coolant is used

(oil).

In the patent of the Russian Federation Ш 2213306 (IPC F25B 30/00, published September 27, 2003], a decentralized heat supply system is proposed using a heat pump that heats the working fluid by supplying heat from the environment, its absorption with the following compression in the compressor and temperature increase, heat removal to the consumer. However, the maximum heating coefficient is achieved only when the environment, as a heat source, has a constant temperature. Therefore, such a pump has a low efficiency. Also known multifunctional heat pump according to the patent of Ukraine [Xa 20778, IPC F24D 19/00, publ. 02.15.2007], including a compressor for pumping the working fluid, three heat exchangers, a condenser, an evaporator, a control device, filters and pipelines. In this case, the condenser-heater and the evaporator-cooler of the working fluid are functionally allocated.

The disadvantages of the described construction include: the inability to increase the conversion coefficient of the heat pump; duplication of one operation by different devices; Unreasonable complexity of the device. The temperature to which the coolant is heated is not enough to use for heating, for example, water. The residual heat that the heat carrier of the heat pump circuit has after heat transfer to the heating circuit is irretrievably lost during throttling. In addition, it is impossible to renew and maintain a source of low-grade heat.

Closest to the combination of essential features and technical nature of the claimed solution is the cryogenic Sterling machine, presented in the patent of the Russian Federation JVs 2166711, IPC ⁷ F25B 9/14, publ. 05/10/2001, selected by the author as a prototype. The cryogenic Stirling machine operates in a reverse cycle. It includes the drive of the working piston and displacer located in the common cylinder. Heat is removed from the air supplied from the outside in the condenser, after which the liquefied air enters the Dewar vessel. Heat, as a by-product of a cryogenic machine, is discharged into the environment by a circulation pump through a heat exchanger through a heat exchanger. Moreover, the amount of heat exceeds the power consumption. This drawback eliminates the technical solution submitted for registration.

The objective of the invention is aimed at providing heat to industry and utilities by utilizing heat from a cryogenic machine.

The problem is solved due to the fact that in the universal power module, which includes a cryogenic machine, in accordance with the invention, the cryogenic machine is additionally equipped with a heat pump, which has a common heat exchanger with the cryogenic machine.

By combining a cryogenic machine and a heat pump into a power module through a common heat exchanger-regenerator, a qualitatively new device is obtained that makes it possible to utilize the unused heat of the cryogenic machine. It should also be noted that any cryogenic machine can be combined with heat pumps of different systems. Figure 1 provides a schematic view of an energy module. The universal energy module contains, for example, a cryogenic Stirling machine 1 operating in the reverse cycle, which also includes a condenser 4 and a heat exchanger 5, which is common for cryogenic machine 1 and heat pump 6, which is additionally equipped with cryogenic machine 1. In addition, the device has load heat exchanger 7.

Universal power module works as follows. When the shaft 2 rotates (from an electric motor, a wind turbine, etc.), cold enters the consumer through line 3 of the capacitor 4. The heat taken from the cryogenic machine 1 is fed to a heat exchanger 5, from which it enters the load heat exchanger 7 and further to the consumer line 8.

An example of a specific implementation:

The power of electric motors of one workshop of the refrigeration plant is 2 MW. The cooling temperature t _oxl = - 40 ⁰ C (T _oxl = 233 ° K), t _m i _p = +70 ⁰ C (T _min = 343 ° K) is the temperature of the excess heat energy that is discharged into the environment. With these temperature indicators, the refrigeration and thermal coefficients are equal to:

To. _cr _m ^ WST ^ LU ^ 343 / (343-233) = 3.12, where:

For χ _to p.mash - coefficient of performance of the cryogenic machine for _TK r.ma _w - thermal coefficient of cryogenic machine. Thus, the refrigeration energy (P _xol ) is:

P _xol = 2 MW * K _{x KP} ^ = 4.24 MW. Excessive thermal energy (P _tech ), which is discharged (at t _w i _a = +70 ⁰ C) is: P _heat = 2 MW * K _{t K1} ,. ^ = 6.24 MW.

If we take this amount of heat energy with the help of a heat pump and give it to the consumer t _max = +100 ⁰ C (T _max = 373 ° K), THEN K _x heat.nacoca ~ REFRIGERATED AND K _{τ heat} l.nacoca - T ^β NECK COEFFICIENCY ^β NTU heat pump equal:

K _xthesi .n _ac oca = T _m n / / (T _max - T _1nJn ) = 343 / (373-343) = 11.43, 'T heat pump * max'

\ * max "- * - msc) li ^ ^j .

Mopschost _dd engine heat pump P: P = P _yes _warm / K _xtepl .nacoca MW = 6.24 / 11.43 = 0.55 MW

The amount of thermal energy P heat _Consumption> which we give through the heat pump to the consumer at I _m3x = +100 ⁰ C is:

P _teplshreb = P _yes * K _tteish . _nacoca = 0.55 MW * 12.43 = 6.78 MW. Thus, the constructive combination in the claimed solution of the cryogenic machine and the heat pump using a heat exchanger allows you to use the excess heat of the cryogenic machine and significantly improve the performance of the heat pump of the energy module. In addition, the provision of heat is carried out without burning natural gas and therefore the absence of carbon dioxide emissions into the environment, which fully meets the requirements of the Geneva Convention from the protection of the ozone layer of the Earth.

Claims

CLAIM

A universal energy module, which includes a cryogenic machine, characterized in that the cryogenic machine is additionally equipped with a heat pump, which has a common heat exchanger with a cryogenic machine.