CN211424794U

CN211424794U - Cold storage

Info

Publication number: CN211424794U
Application number: CN202020022078.4U
Authority: CN
Inventors: 杨彩成
Original assignee: Maoming Hongcheng Seafood Development Co ltd
Current assignee: Maoming Hongcheng Seafood Development Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-04
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a freezer, the pipeline of this freezer need use multistage pipe connection combination to use, and the pipe joint leakproofness is unsafe to having the ammonia of toxicity at prior art, and slight disappointing all arouses great incident easily. The joint of the two sections of pipelines is connected by using a sealing joint, and the sealing of the joint is greatly improved because the pipeline opening is embedded into a sealing ring in an annular U-shaped groovePreventing ammonia leakage. Each sealing joint is correspondingly provided with a water tank, the sealing joint is immersed in water in the water tank, ammonia is soluble in water and has very high solubility, a pH detection sensor is arranged in the water tank, and when ammonia leakage occurs, OH is generated when the ammonia is dissolved in the water^‑Make the melt be alkaline, the pH that the pH detection sensor detected water tank solution changes and gives the controller with the signal transmission, and the controller control loudspeaker send the alarm sound and remind ammonia to leak, and simultaneously, water can absorb partial ammonia again and provide emergency treatment's time for the mill.

Description

Cold storage

Technical Field

The utility model relates to a food refrigeration preserves technical field, especially relates to a large-scale freezer that is used for freezing of marine product food to preserve.

Background

The general cold storage is mostly refrigerated by a refrigerator, and liquid (ammonia or freon) with very low gasification temperature is used as a coolant to evaporate under the conditions of low pressure and mechanical control to absorb heat in the cold storage, thereby achieving the purpose of cooling. The most common is a compression refrigerator, which is mainly composed of a compressor, a condenser, a throttle valve, an evaporation tube, and the like. Freon is often used as the coolant in small-size freezer, but ammonia is often used as the coolant in large-scale freezer, has certain dangerous work, and especially the ammonia in the system is flammable and explosive, and is poisonous, and the gas that makes people suffocate has the potential great harm to health and safety in production. Although the sealing performance and the safety of each main device are greatly improved compared with the prior art, pipelines are fully distributed on the site of the refrigeration house, and the sealing performance among the pipelines is a potential safety hazard.

Therefore, in order to solve the problems in the prior art, it is important to provide a high-safety refrigerator.

Disclosure of Invention

The utility model aims to avoid the weak point among the prior art and provide a high freezer of security.

The purpose of the utility model is realized through the following technical scheme:

provides a refrigeration house which comprises a refrigeration house body and an ammonia refrigeration system and is characterized in that the ammonia refrigeration system is provided with a compressor, an oil separator and an evaporative condenser, the compressor, the oil separator and the evaporative condenser are sequentially connected by pipelines to form a circulating system, the connection parts of two adjacent pipelines are connected by a sealing joint,

the sealing joint is cylindrical, an annular connecting ring is arranged in the middle of an inner cavity of the cylindrical shape, the connecting ring and the sealing joint are of an integral structure, the sealing joint is divided into a first connecting section and a second connecting section by the connecting ring, the first connecting section and the second connecting section are both provided with internal threads, and the end part connecting part of the pipeline is provided with external threads; the both sides that the go-between faced first linkage segment and second linkage segment all are equipped with annular U type groove, are equipped with the soft cyclic annular U type sealing washer that pipeline opening end portion can inlay into in the U type groove, are equipped with the second sealing washer between the outermost end opening of first linkage segment and second linkage segment and the pipeline.

Preferably, each sealing joint is correspondingly provided with a water tank, and the sealing joint is immersed in the water tank.

Preferably, the water tank is provided with a through hole through which the pipe passes, and the pipe is mounted to the through hole of the water tank using a sealing flange.

Preferably, a third sealing ring is further arranged between the pipeline and the through hole of the water tank.

Preferably, a pH detection sensor is arranged in the water tank and is connected with the controller through an electric wire, and the controller is provided with a loudspeaker.

Preferably, the compressor is also equipped with an economizer.

Preferably, the air outlet of the evaporative condenser is connected with an air separator, one discharge port of the air separator is communicated with the feed inlet of the liquid discharge barrel through a pipeline, the discharge port of the liquid discharge barrel is connected with the feed inlet of the low-pressure circulating liquid storage barrel through a pipeline, and the discharge port of the low-pressure circulating liquid storage barrel is connected with the feed inlet of the compressor through a pipeline

The utility model has the advantages that:

(1) the utility model discloses a pipeline of freezer needs to use the multistage pipe connection combination to use, and the pipe joint leakproofness is unsafe to the ammonia that has the toxicity at prior art, and slight disappointing all arouses great incident easily. The joint of the two sections of pipelines is connected by using a sealing joint, and the sealing ring of the joint is greatly improved by embedding the pipeline opening into the annular U-shaped groove, so that ammonia leakage is prevented, and the safety is high.

(2) The utility model discloses an every sealing joint correspondence of freezer is provided with a water tank, and sealing joint soaks the aquatic of water tank, and ammonia is soluble in water and the solubility is very high, and when taking place ammonia and leaking, the water of water tank can the effective absorption ammonia and avoid ammonia to leak in the air crisis factory workman's life safety.

(3) Be equipped with pH detection sensor in the water tank, pH detection sensor passes through electric wire connection with the controller, and loudspeaker are installed to the controller. Ammonia solutionGeneration of OH in water^-Make the melt be alkaline, the pH that the pH detection sensor detected water tank solution changes and gives the controller with the signal transmission, and the controller control loudspeaker send the alarm sound and remind ammonia to leak, and simultaneously, water can absorb partial ammonia again and provide emergency treatment's time for the mill.

Drawings

The present invention is further explained by using the attached drawings, but the content in the attached drawings does not constitute any limitation to the present invention.

Fig. 1 is a schematic view of the refrigeration principle of an embodiment of the present invention.

Fig. 2 is a schematic view of a sealing joint structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of a sealing joint incorporating a water tank according to an embodiment of the present invention.

Fig. 4 is a schematic view of the refrigeration principle of embodiment 3 of the present invention.

Fig. 1 to 4 include:

1, a compressor, 2, a sealing joint, 3 pipelines, 4 oil separators, 5 evaporative condensers, 6 air separators, 7 liquid discharge barrels, 8 low-pressure circulating liquid storage barrels, 9 economizers, 10 reservoir bodies and 11 water tanks;

2-1 first connecting section, 2-2 second connecting section, 2-3 connecting ring, 2-4U-shaped groove, 2-5 soft annular U-shaped sealing ring and 2-6 second sealing ring.

Detailed Description

The present invention will be further illustrated with reference to the following examples.

Example 1

Referring to fig. 1, the refrigeration storage of the present embodiment includes a storage body and an ammonia refrigeration system, wherein the ammonia refrigeration system is provided with a compressor, an oil separator and an evaporative condenser, the compressor, the oil separator and the evaporative condenser are sequentially connected by using a pipeline to form a circulation system, and the pipeline is equipped with a throttle valve. Wherein the evaporative condenser is equipped with a throttle valve. The working process of the ammonia refrigeration system of the embodiment is as follows: the compressor compresses the ammonia gas into high-pressure high-temperature ammonia gas, and then the ammonia gas is discharged into the oil separator to separate lubricating oil in high-pressure steam discharged by the refrigeration compressor, so that the device is ensured to operate safely and efficiently. The high-pressure high-temperature ammonia gas after the lubricating oil is separated is cooled and released heat in a spraying mechanism of the evaporative condenser to be condensed into high-pressure ammonia liquid, and then the high-pressure high-temperature ammonia liquid is throttled by the throttle valve to be low-pressure low-temperature ammonia liquid, and enters an evaporation mechanism of the evaporative condenser again to absorb heat for vaporization, so that the purpose of circulating refrigeration is achieved. Thus, ammonia undergoes four basic processes in the system, compression, condensation, throttling, and evaporation to complete a refrigeration cycle. It should be noted that the compressor, the oil separator, the evaporative condenser and the throttle valve of the present invention are commercially available, and those skilled in the art can clearly understand and implement the technical solution of the present invention.

Referring to fig. 2 and 3, in the present embodiment, the joints of two sections of pipes are connected by using a sealing joint, the sealing joint is cylindrical, an annular connecting ring is arranged in the middle of the cylindrical inner cavity, the connecting ring and the sealing joint are of an integral structure, and the connecting ring divides the sealing joint into a first connecting section and a second connecting section, the first connecting section and the second connecting section are both provided with internal threads, and the joints at the ends of the pipes are provided with external threads; the two sides of the connecting ring facing the first connecting section and the second connecting section are respectively provided with an annular U-shaped groove, a soft annular U-shaped sealing ring is arranged in each U-shaped groove, the opening end of each pipeline can be embedded into the groove, the soft annular U-shaped sealing rings can be welded through ultrasonic waves or adhered to the U-shaped grooves through glue to prevent displacement or falling in the using process, and in the embodiment, the soft annular U-shaped sealing rings can be made of rubber or silica gel. And a second sealing ring is arranged between the outermost openings of the first connecting section and the second connecting section and the pipeline so as to further prevent ammonia leakage.

In order to further improve the security, every sealing joint of this embodiment corresponds and is provided with a water tank, and sealing joint immerses the aquatic of water tank, and simultaneously, be equipped with pH detection sensor in the water tank, pH detection sensor passes through electric wire connection with the controller, and loudspeaker are installed to the controller. When ammonia leakage occurs, OH is generated when ammonia is dissolved in water to enable the molten liquid to be alkaline, the pH detection sensor detects the pH change of the water tank solution and transmits a signal to the controller, the controller controls the loudspeaker to give an alarm to remind that ammonia is leaked, meanwhile, the ammonia is soluble in water and has high solubility, the water in the water tank can effectively absorb the ammonia to avoid the ammonia from being leaked in the air to endanger the life safety of workers in a factory, and the time for emergency treatment is provided for the factory.

Example 2

The main technical solution of this embodiment is substantially the same as that of embodiment 1, and the features that are not explained in this embodiment adopt the explanations in embodiment 1, and are not described herein again. In this embodiment, the water tank is provided with the through-hole that can supply the pipeline to pass through, and the pipeline uses sealing flange to install in the through-hole of water tank, still is equipped with the third sealing washer between the through-hole of pipeline and water tank.

Example 3

The main technical solution of this embodiment is substantially the same as that of embodiment 1 or embodiment 2, and the features that are not explained in this embodiment adopt the explanations in embodiment 1 or embodiment 2, which are not described herein again. Referring to fig. 4, in order to better operate the refrigeration system, the compressor of this embodiment is further equipped with an economizer, meanwhile, the air outlet of the evaporative condenser is connected with an air separator, one of the discharge ports of the air separator is further communicated with the feed port of the liquid discharge barrel through a pipeline, the discharge port of the liquid discharge barrel is connected with the feed port of the low-pressure circulating liquid storage barrel through a pipeline, and the discharge port of the low-pressure circulating liquid storage barrel is connected with the feed port of the compressor through a pipeline.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and do not limit the protection scope of the claims. It will be understood by those skilled in the art that various modifications and substitutions can be made to the preferred embodiment without departing from the spirit and scope of the invention.

Claims

1. The cold storage comprises a storage body and an ammonia refrigeration system, and is characterized in that the ammonia refrigeration system is provided with a compressor, an oil separator and an evaporative condenser, the compressor, the oil separator and the evaporative condenser are sequentially connected by pipelines to form a circulating system, the joints of two adjacent pipelines are connected by a sealing joint,

the sealing joint is cylindrical, an annular connecting ring is arranged in the middle of an inner cavity of the cylindrical shape, the connecting ring and the sealing joint are of an integral structure, the sealing joint is divided into a first connecting section and a second connecting section by the connecting ring, the first connecting section and the second connecting section are both provided with internal threads, and the connecting part of the end part of the pipeline is provided with external threads; two sides of the connecting ring, which face the first connecting section and the second connecting section, are provided with annular U-shaped grooves, soft annular U-shaped sealing rings are arranged in the U-shaped grooves, the end parts of the openings of the pipelines can be embedded in the U-shaped grooves, and second sealing rings are arranged between the openings of the outermost ends of the first connecting section and the second connecting section and the pipelines;

each sealing joint is correspondingly provided with a water tank, and the sealing joint is immersed in the water tank;

be equipped with pH detection sensor in the water tank, pH detection sensor passes through electric wire connection with the controller, and loudspeaker are installed to the controller.

2. The freezer of claim 1, characterized in that: the water tank is provided with a through hole for the pipeline to pass through, and the pipeline is installed in the through hole of the water tank by using a sealing flange.

3. The freezer of claim 2, characterized in that: and a third sealing ring is also arranged between the pipeline and the through hole of the water tank.

4. The freezer of claim 1, characterized in that: the compressor is also equipped with an economizer.

5. The freezer of claim 1, characterized in that: the air outlet of the evaporative condenser is connected with an air separator, one discharge port of the air separator is communicated with the feed port of the liquid discharge barrel through a pipeline, the discharge port of the liquid discharge barrel is connected with the feed port of the low-pressure circulating liquid storage barrel through a pipeline, and the discharge port of the low-pressure circulating liquid storage barrel is connected with the feed port of the compressor through a pipeline.