CN207394376U

CN207394376U - Nitrogen Station

Info

Publication number: CN207394376U
Application number: CN201721184993.8U
Authority: CN
Inventors: 王益强; 林传军
Original assignee: Jiangsu Dalishi Investment Co Ltd
Current assignee: Jiangsu Dalishi Investment Co Ltd
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2018-05-22
Anticipated expiration: 2027-09-15

Abstract

The utility model discloses Nitrogen Stations.The Nitrogen Station of the utility model, liquid nitrogen enters heat exchanger from liquid nitrogen storage tank, heat exchange is carried out with the low temperature of recovering liquid to liquid nitrogen through heat exchanger, then liquid nitrogen enters evaporator, it is converted into gaseous nitrogen, gaseous nitrogen is discharged after reducer unit depressurizes, and such nitrogen station structure is relatively simple, is avoided because the reliability caused by complicated is poor the problem of.

Description

Nitrogen Station

Technical field

The utility model is related to the technical field of nitrogen conveying equipment, in particular to Nitrogen Station.

Background technology

Nitrogen Station, for nitrogen, send nitrogen system equipment, is widely used in commercial refineries as main nitrogen processed.

Chinese patent CN204852929U discloses a kind of novel nitrogen station system, which includes preposition Cleaning system and purification wind tank, nitrogen making machine, nitrogen buffer tank, accurate filter, flowmeter, low nitrogen delivery outlet, the output of high nitrogen Mouth, accurate filter, ammonia pump, liquid nitrogen container, wherein：Preposition cleaning system and purification wind tank, nitrogen making machine, nitrogen buffer tank, The first main connecting pipe connection is passed sequentially through between accurate filter, flowmeter, low nitrogen delivery outlet；Liquid nitrogen container, ammonia pump, essence The second main connecting pipe connection is passed sequentially through between close filter, high nitrogen delivery outlet；And high nitrogen delivery outlet and low nitrogen delivery outlet Between also connected by pipeline.Preposition cleaning system specifically includes air compressor machine, non-purification wind tank, oil water separator, net dry machine, master Pipe filter, micro- oil strainer, wherein；Air compressor machine, non-purification wind tank, oil water separator, net dry machine, supervisor's filter, micro- oil Filter passes sequentially through pipeline connection and constitutes preposition cleaning system.Preposition cleaning system further include be connected to it is non-purification wind tank after First branch pipeline；The non-purification wind tank of access device is connected on first branch pipeline.Preposition cleaning system, which further includes, to be connected to Purify the second branch pipeline after wind tank；Access device purification wind tank is connected on the second branch pipeline.In the first main connecting pipe On be additionally provided with nitrogen adsorption device；Nitrogen adsorption device is mounted on nitrogen making machine.First main connecting pipe and the second main connecting pipe On go back uniform intervals and be provided with multiple flow control valves.First main connecting pipe, the second main connecting pipe, first branch pipeline With switching control pilot door is both provided on the second branch pipeline.

Above in the prior art, the structure of the Nitrogen Station is complex, and wherein go wrong must for some or some instruments Entire Nitrogen Station is so caused to break down, reliability is poor.

Utility model content

In view of this, the utility model embodiment is designed to provide a kind of preferable Nitrogen Station of reliability.

A kind of Nitrogen Station, including：

One liquid nitrogen storage tank, to store liquid nitrogen；

One heat exchanger, the liquid nitrogen the liquid nitrogen storage tank to be excluded carry out heat exchange；

One evaporator, the liquid nitrogen discharged through the heat exchanger to be evaporated to obtain gaseous nitrogen；

And reducer unit, the gaseous nitrogen to be depressurized；

The liquid nitrogen storage tank, heat exchanger, evaporator and reducer unit are sequentially communicated.

Further, the liquid nitrogen storage tank includes tank body and is communicated in the booster of the tank body.

Further, the liquid nitrogen storage tank further include be communicated in the tank body detecting the liquid of the liquid level of the tank body Position detection piece.

Further, the tank body includes outer wall and inner wall, and vacuum chamber is equipped between the outer wall and inner wall.

Further, the liquid nitrogen storage tank further includes the explosion-protection equipment for being arranged at the tank body.

Further, the evaporator includes two evaporation elements being arranged in parallel.

The Nitrogen Station of the utility model, liquid nitrogen enter heat exchanger from liquid nitrogen storage tank, and hot friendship is carried out to liquid nitrogen through heat exchanger The low temperature with recovering liquid is changed, then liquid nitrogen enters evaporator, is converted into gaseous nitrogen, gaseous nitrogen is after reducer unit depressurizes Discharge, such nitrogen station structure is relatively simple, avoids because the reliability caused by complicated is poor the problem of.

For the above-mentioned purpose of the utility model, feature and advantage is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and Attached drawing appended by cooperation, is described in detail below.

Description of the drawings

It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 shows the structure diagram for the Nitrogen Station that the utility model embodiment is provided.

Main element symbol description：

20- liquid nitrogen storage tanks；

21- tank bodies；

211- vacuum chambers；

22- boosters；

23- level sensing parts；

24- explosion-protection equipments；

40- heat exchangers；

60- evaporators；

80- reducer units.

Specific embodiment

For the ease of understanding the utility model, it is described more fully below with reference to relevant drawings.It is provided in attached drawing Preferred embodiment.It but can realize in many different forms, however it is not limited to embodiment described herein.On the contrary Ground, the purpose for providing these embodiments are to make the disclosure of which more thorough and comprehensive.

The term used in the various embodiments of the disclosure is used only for the purpose of describing specific embodiments and not anticipates In the various embodiments of the limitation disclosure.As used herein, singulative is intended to also include plural form, unless context is clear Chu it is indicated otherwise.Unless otherwise defined, otherwise all terms (including technical term and scientific terminology) used herein have There is the meaning identical with the various normally understood meanings of embodiment one skilled in the art of the disclosure.The term (term such as limited in the dictionary generally used) is to be interpreted as having and situational meaning in the related technical field Identical meaning and the meaning of Utopian meaning or overly formal will be interpreted as having, unless in the various of the disclosure It is clearly defined in embodiment.

In the description of the utility model, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ", The orientation or position relationship of the instructions such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on Orientation shown in the drawings or position relationship are for only for ease of description the utility model and simplify description rather than instruction or dark Show that signified device or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right The limitation of the utility model.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It is combined in an appropriate manner in any one or more embodiments or example.

In the description of the utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be the company inside mechanical connection or electrical connection or two elements It is logical, it can be directly connected, can also be indirectly connected by intermediary, it for the ordinary skill in the art, can To understand the concrete meaning of above-mentioned term as the case may be.

The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified in various realities The various constituent element in example are applied, but respective sets can not be limited into element.For example, presented above be not intended to limit the element Order and/or importance.The purpose presented above for being only used for differentiating an element and other elements.For example, the first user Device and second user device instruction different user device, although the two is all user apparatus.For example, the disclosure is not being departed from In the case of the scope of various embodiments, first element is referred to alternatively as second element, and similarly, second element is also referred to as One element.

It should be noted that：It, can be by the first composition member if a constituent element ' attach ' to another constituent element by description Part is directly connected to the second constituent element, and " connection " the 3rd can be formed between the first constituent element and the second constituent element Element.On the contrary, when a constituent element " being directly connected to " is arrived another constituent element, it will be appreciated that be in the first constituent element And second the 3rd constituent element is not present between constituent element.

It please refers to Fig.1.The Nitrogen Station of the utility model embodiment, including：

One liquid nitrogen storage tank 20, to store liquid nitrogen；

One heat exchanger 40, the liquid nitrogen liquid nitrogen storage tank 20 to be excluded carry out heat exchange；

One evaporator 60, to be evaporated the liquid nitrogen discharged through heat exchanger 40 to obtain gaseous nitrogen；

With reducer unit 80, gaseous nitrogen to be depressurized；

Liquid nitrogen storage tank 20, heat exchanger 40, evaporator 60 and reducer unit 80 are sequentially communicated.

The Nitrogen Station of the utility model embodiment, liquid nitrogen enter heat exchanger 40 from liquid nitrogen storage tank 20, right through heat exchanger 40 Liquid nitrogen progress heat exchange enters evaporator 60 with the low temperature of recovering liquid, then liquid nitrogen, is converted into gaseous nitrogen, and gaseous nitrogen passes through Reducer unit 80 is discharged after depressurizing, and such nitrogen station structure is relatively simple, avoids the reliability caused by complicated The problem of poor.

As a kind of preferable embodiment, liquid nitrogen storage tank 20 includes tank body 21 and is communicated in the booster 22 of tank body 21, It can be so pressurized into tank body 21, the liquid condition of nitrogen is maintained to maintain the pressure of 21 gas phase of tank body.Here, booster 22 may be employed known or existing form, such as Chinese patent CN101963165A.

Here it is possible to understand, booster 22 can be communicated with one or more valves, to adjust going out for booster 22 Gas or the size of supercharging.

Liquid nitrogen storage tank 20 further include be communicated in the tank body 21 detecting the level sensing of the liquid level of the tank body 21 Part 23 can so detect the liquid level in tank body 21, be pressurized or inflate into tank body 21 in order to decide whether.Herein, Level sensing part 23 can be used existing form, such as CN205861161U, CN206469938U without being limited thereto.

Liquid nitrogen storage tank 20 can also include being arranged at the explosion-protection equipment 24 in tank body 21, and such explosion-protection equipment 24 can reduce The explosion of tank body 21 is injured caused by personnel.Herein, existing form can be used in explosion-protection equipment 24, can be included in this kind of anti- The structure of quick-fried device 24, including（It is not shown in figure）Explosion-proof pressure lid, venthole, pressure sensor device, warning device, prompting Module.Whether pressure there is exception in real-time monitoring of tank body 21, and venthole is opened if noting abnormalities, and discharges 21 internal pressure of tank body Power.The mode of warning device shows for sound or LED lamplight.Reminding module prompts process and points for attention.

The tank skin of above-mentioned tank body 21 can include outer wall and inner wall, and vacuum chamber 211 can be equipped between inner and outer wall.Vacuum It is evacuated in chamber 211, to obtain thermal insulation.It is easily understood that the true to what is vacuumized of connection vacuum chamber 211 can be set Empty valve etc..

Can the inflation inflated should be set in the tank skin of tank body 21 it is contemplated that in order to be inflated into tank body 21 Valve, to the external full valve of survey for testing whether the equipment full of gas, to air bleeding valve for being vented etc..It the quantity of these valves and sets Seated position selects as needed.

Evaporator 60 can include two evaporation elements being arranged in parallel, and can so improve its stability.Evaporator 60 can With using such as the evaporator 60 of air-conditioning or other forms.

The structure of reducer unit 80 can be to be made up of multiple pressure reducing valve in parallel or series.Here, pressure reducing valve Existing, such as CN205859276U can be used in form.

It is above-mentioned not address part, suitable for the prior art.

Although it is above it is more used the term for representing structure it does not preclude the possibility of using other terms.Use this A little terms are used for the purpose of more easily describing and explaining the essence of the utility model；It is construed as any additional Limitation is all contrary to the spirit of the present invention.

The above is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be described with power Subject to the protection domain of profit requirement.

Claims

1. a kind of Nitrogen Station, which is characterized in that including：

One liquid nitrogen storage tank, to store liquid nitrogen；

And reducer unit, the gaseous nitrogen to be depressurized；

2. Nitrogen Station according to claim 1, which is characterized in that the liquid nitrogen storage tank includes tank body and is communicated in the tank The booster of body.

3. Nitrogen Station according to claim 2, which is characterized in that the liquid nitrogen storage tank, which further includes, is communicated in the tank body To detect the level sensing part of the liquid level of the tank body.

4. Nitrogen Station according to claim 2, which is characterized in that the tank body include outer wall and inner wall, the outer wall and Vacuum chamber is equipped between inner wall.

5. Nitrogen Station according to claim 4, which is characterized in that the liquid nitrogen storage tank, which further includes, is arranged at the tank body Explosion-protection equipment.

6. Nitrogen Station according to claim 1, which is characterized in that the evaporator includes the two evaporation lists being arranged in parallel Member.