CN104567082B

CN104567082B - Negative-pressure refrigerator

Info

Publication number: CN104567082B
Application number: CN201310506221.1A
Authority: CN
Inventors: 冯友明; 黄瑜强; 徐祖明
Original assignee: HEILONGJIANG XINHE TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: HEILONGJIANG XINHE TECHNOLOGY DEVELOPMENT CO., LTD.
Priority date: 2013-10-24
Filing date: 2013-10-24
Publication date: 2017-05-17
Anticipated expiration: 2033-10-24
Also published as: CN104567082A

Abstract

The invention relates to a negative-pressure jet refrigerator. The refrigerator comprises an evaporator and is characterized in that a connecting pipe is connected to the top end of the evaporator and is connected with a back-suction prevented tank, the back-suction prevented tank is connected with an input end of a liquid pump by a pipe, an output end of the liquid pump is connected with an input end of a reduction cooling tank, an output end of the reduction cooling tank is connected with a back-suction prevented tank by a pipe, the corresponding back-suction prevented tank is connected with a flow limiting valve by a pipe, and the flow limiting valve is connected with a jet nozzle which is located at the bottom of the evaporator; each back-suction prevented tank consists of a closed tank body, an inlet pipe and an outlet pipe, the bottom of each inlet pipe is a long pipe which leads into the bottom of the corresponding tank body, and the bottom of each outlet pipe is a short pipe which is located at the upper part of the corresponding tank body; a one-way valve is in series connection with the pipe between the back-suction prevented tank and the liquid pump. The refrigerator has the advantages that refrigeration is energy-saving and environment-friendly; due to the adoption of low-temperature and low-pressure circulating refrigeration, during work, the discharge of heat is low, the working noise is low, and the energy/efficiency ratio of converting power into cold is high and is greatly superior to that of the existing high-temperature and high-pressure compressor refrigeration.

Description

A kind of negative pressure refrigeration machine

Technical field

The present invention relates to a kind of negative pressure refrigeration machine.

Background technology

Current refrigeration plant using the compressor of high pressure-temperature, is freezed, due to adopting using Carnot cycle mostly Cold-producing medium is compressed with mechanical compressor, therefore existing refrigeration plant often has very big noise, and compressor pair Very big hot driving is produced after refrigerant compression, the temperature for having thus resulted in local environment is raised, and heat is presented in big city Island effect.Therefore the refrigeration of low-pressure low-temperature how is realized using new refrigeration plant, is to improve urban heat land effect and reduction The key of refrigeration plant noise, in addition the efficiency of current compressor cooling is not also high, and according to current Energy Efficiency Ratio country is reached The air-conditioning of standard, the work(of its input is converted into cold being only 4 --- and 5, the conversion efficiency of design is reached far away, therefore in the current energy Under environment in short supply, improving the efficiency of refrigeration will also become a developing direction.

The content of the invention

Present invention aim to address the problems referred to above existing for existing High Temperature High Pressure refrigeration plant, there is provided a kind of negative pressure spray Penetrate refrigeration machine.A kind of negative pressure refrigerating method of present invention design, it is characterised in that：Cold-producing medium is placed in vaporizer, a liquid is used Body pump extracts gaseous, liquid mix refrigerant to upper end of evaporator cavity, and gaseous, liquid mix refrigerant is pressurizeed by liquid pump After send a cooling restorer, cool down restorer and the cold-producing medium of gassiness cooled down, and gas is overflowed from liquid, the refrigeration of liquid Agent sends into vaporizer by flow-limiting valve.A kind of negative pressure refrigeration machine, including vaporizer, the top of vaporizer is connected with a connecting tube, even Adapter one counnter attack cucurbitula of connection, counnter attack cucurbitula is connect the input of a liquid pump by pipe, and the reduction of output termination one of liquid pump is cold But groove input, reduces cooling bath outfan and connects a counnter attack cucurbitula by pipe, and counnter attack cucurbitula connects flow-limiting valve, flow-limiting valve by pipe Jet blower of the connection positioned at base of evaporator.Counnter attack cucurbitula is made up of the tank body and turnover two tubes closed, the bottom of inlet pipe For a long tube for leading to tank base, the bottom of outlet pipe is the short tube positioned at tank body top.Counnter attack cucurbitula is located at a bosh It is interior.Reduction cooling bath is made up of cell body and coil pipe and drain pipe, the entrance point connection reduction cooling bath input of coil pipe, coil pipe End connects drain pipe, and drain pipe is lain in a horizontal plane on the bottom surface of cell body, and small through hole is densely covered with drain pipe, and reduction cooling bath is defeated Go out the long tube that end is located at cell body bottom for a root bottom part.Check valve is serially connected with pipe between counnter attack cucurbitula and liquid pump. Check valve is serially connected with pipe between reduction cooling bath outfan and counnter attack cucurbitula.It is an advantage of the invention that energy-conservation during refrigeration Environmental protection, due to using low-temp low-pressure circularly cooling, therefore discharge heat is few when working, and operating noise is little, and electrical power conversion into Cold Energy Efficiency Ratio is high, is significantly better than the efficiency of existing High Temperature High Pressure compressor cooling.

Description of the drawings

Accompanying drawing is the structural representation of the present invention.

Specific embodiment

The present invention is elaborated with reference to embodiment.

A kind of negative pressure refrigerating method, it is characterised in that：Cold-producing medium is placed in vaporizer, with a liquid pump to vaporizer Upper end cavity extract gaseous, liquid mix refrigerant, by liquid pump to sending a cooling also after the pressurization of gaseous, liquid mix refrigerant Prototype, cools down restorer and the cold-producing medium of gassiness is cooled down, and gas is overflowed from liquid, and the cold-producing medium of liquid is sent by flow-limiting valve Enter vaporizer.

Figure includes vaporizer 1, it is characterised in that：The top of vaporizer is connected with a connecting tube 2, and connecting tube connection one is prevented Back suction tank 3, counnter attack cucurbitula is connect the input of a liquid pump 5 by pipe 4, and the output termination one of liquid pump reduces cooling bath 6 and is input into End, reduction cooling bath outfan connects a counnter attack cucurbitula 8 by pipe 7, and counnter attack cucurbitula connects flow-limiting valve 10 by pipe 9, and flow-limiting valve connects Connect the jet blower 11 positioned at base of evaporator.Counnter attack cucurbitula is made up of the tank body 12 and turnover two tubes 13,14 closed, inlet pipe Bottom be a long tube for leading to tank base, the bottom of outlet pipe is the short tube positioned at tank body top.It is cold that counnter attack cucurbitula is located at one But in tank 15.Reduction cooling bath is made up of cell body 16 and coil pipe 17 and drain pipe 18, the entrance point connection reduction cooling of coil pipe Groove input, the end connection drain pipe of coil pipe, drain pipe is lain in a horizontal plane on the bottom surface of cell body, is densely covered with drain pipe little logical Hole 19, reduces the long tube that cooling bath outfan 20 is that a root bottom part is located at cell body bottom.Between counnter attack cucurbitula and liquid pump Check valve 21 is serially connected with pipe.Check valve 22 is serially connected with pipe between reduction cooling bath outfan and counnter attack cucurbitula.

During work, cooling water is inoculated with bosh, in reduction cooling bath cold-producing medium is marked with, refrigeration is filled with vaporizer Agent, the cold-producing medium of cold-producing medium alkanes, when liquid pump is started, the gas positioned at vaporizer upper space is extracted, cold-producing medium Will evaporate in the environment of negative pressure, cold-producing medium once expands evaporation, endothermic effect will be produced, the temperature of vaporizer is reduced, The cold-producing medium of the steam state extracted out when then being started by liquid pump, the long tube entered in counnter attack cucurbitula, the cold-producing medium of steam state is anti- It is full of in back suction tank, is then that outlet pipe is entered in liquid pump by pipe and check valve from short tube, due to the pressurization of liquid pump Effect, becomes vapour-liquid mixed state after the cold-producing medium of steam state is pressurized, due to pressurizeing to cold-producing medium after produce certain heat, therefore rise The cold-producing medium of the vapour-liquid mixed state after temperature pressurization enters reduction cooling bath, is passed in coil pipe by reduction cooling bath input, vapour The cold-producing medium of liquid mixed state flows in coils, and its heat is reduced the refriger-ant section in cooling bath and absorbs, and vapour-liquid mixed state Cold-producing medium be finally flowed in drain pipe, then have the small through hole gathered on drain pipe to be flowed in reduction cooling bath, it is and original Cold-producing medium mixing, due to part steam state cold-producing medium when the small through hole of drain pipe is gone out still contain a small amount of bubble, therefore on When rising, diffusion heat absorption, so entirely the cold-producing medium in reduction cooling bath is maintained in a cardinal temperature and will not heat up.Become liquid Cold-producing medium due to low pressure, therefore it can toward vaporizer flowing, centre through a counnter attack cucurbitula, then in counnter attack cucurbitula Interior, cold-producing medium has again cooling water temperature, and the jet blower for being finally flowed into base of evaporator by flow-limiting valve is entered in vaporizer, limit Stream valve is that, to ensure that the balanced recycle of cold-producing medium is arranged, to ensure how many cold-producing mediums are flowed out at vaporizer top, just there is commensurability system Cryogen is filled into from base of evaporator, with the prolonged circulation work for completing to freeze.

Claims

1. a kind of negative pressure refrigerating method, it is characterised in that：The refrigerating method is concretely comprised the following steps：

Step one：Cold-producing medium is individually positioned in the reduction cooling bath of vaporizer and cooling restorer, with a liquid pump to steaming The upper end cavity extraction gaseous refrigerant for sending out device is entered in counnter attack cucurbitula and is full of in counnter attack cucurbitula；

Step 2：The gaseous refrigerant is entered in liquid pump from the short tube of counnter attack cucurbitula；The gaseous refrigerant is in liquid Gaseous, liquid mix refrigerant is formed in pump；

Step 3：The gaseous, liquid mix refrigerant enters reduction cooling bath, and by reducing cooling bath input disk is passed into In pipe, then flow in drain pipe via coil pipe；The gaseous, liquid mix refrigerant is flowed into by the small through hole gathered on drain pipe To reduction cooling bath, and liquid refrigerant is mixed to form with the cold-producing medium in reduction cooling bath；

Step 4：The liquid refrigerant enter counnter attack cucurbitula in, in counnter attack cucurbitula, liquid refrigerant by cooling water temperature, The last jet blower for being flowed into base of evaporator by flow-limiting valve is entered in vaporizer.

2. a kind of negative pressure refrigeration machine, including vaporizer, it is characterised in that：The top of vaporizer is connected with a connecting tube, connecting tube Connect a counnter attack cucurbitula, counnter attack cucurbitula is connect the input of a liquid pump by pipe, and the output termination one of liquid pump reduces cooling bath Input, reduction cooling bath outfan connects a counnter attack cucurbitula by pipe, and counnter attack cucurbitula connects flow-limiting valve, flow-limiting valve connection by pipe Positioned at the jet blower of base of evaporator；Counnter attack cucurbitula is made up of the tank body and turnover two tubes closed, and the bottom of inlet pipe is one Lead to the long tube of tank base, the bottom of outlet pipe is the short tube positioned at tank body top.

3. a kind of negative pressure refrigeration machine as described in claim 2, it is characterised in that：Counnter attack cucurbitula is located in a bosh.

4. a kind of negative pressure refrigeration machine as described in claim 2, it is characterised in that：Cooling bath is by cell body and coil pipe and goes out liquid for reduction Pipe is constituted, and the entrance point connection reduction cooling bath input of coil pipe, the end connection drain pipe of coil pipe, drain pipe lies in a horizontal plane in On the bottom surface of cell body, small through hole is densely covered with drain pipe, reduces the length that cooling bath outfan is that a root bottom part is located at cell body bottom Pipe.