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A high-density, low-freezing-point sealing oil composition special for gas cabinets

A technology of sealing oil and composition, applied in lubricating composition, petroleum industry, etc., can solve the problems of affecting the normal operation of gas holders, piston rollover, oil anti-rust and anti-corrosion performance decline, etc., to achieve good anti-emulsification and water separation Effects of performance, low freezing point, good lubricity and flow

Active Publication Date: 2022-05-06
KASONG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (5) Good anti-emulsification and water-separation performance: During the use of the dry-type gas cabinet, the sealing oil participates in the circulation process of the oil product in the gas cabinet, and the oil will form with the water cushion at the bottom of the cabinet and the gas in the cabinet contact to form an oil-water mixture. If the water cannot be effectively separated within the specified time, the oil will be gradually emulsified as time goes on, and the anti-rust and anti-corrosion performance of the emulsified oil will decrease accordingly. In winter, it is easy to cause ice to cause the piston to roll over, which will affect the normal operation of the gas holder

Method used

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  • A high-density, low-freezing-point sealing oil composition special for gas cabinets
  • A high-density, low-freezing-point sealing oil composition special for gas cabinets
  • A high-density, low-freezing-point sealing oil composition special for gas cabinets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In the blending kettle with stirring and heating functions, add the ingredients according to the following proportions, stir at 50-70°C for 2-5 hours to blend the special sealing oil composition for gas cabinets of the present invention, the composition proportions are as follows:

[0033]

[0034]

Embodiment 2

[0036] In the blending kettle with stirring and heating functions, add the ingredients according to the following proportions, stir at 50-70°C for 2-5 hours to reconcile the special sealing oil composition for gas holders of the present invention, the composition proportions are as follows:

[0037]

Embodiment 3

[0039] In the blending kettle with stirring and heating functions, add the ingredients according to the following proportions, stir at 50-70°C for 2-5 hours to reconcile the special sealing oil composition for gas holders of the present invention, the composition proportions are as follows:

[0040]

[0041]

[0042] A comprehensive comparative analysis was carried out between Examples 1-3 and major competing products in the existing market, and the results are shown in Table 1.

[0043] Table 1 Gas cabinet sealing oil composition embodiment 1-3 and the main performance evaluation results of the main competing products in the existing market

[0044]

[0045] The performance evaluation data in Table 1 shows that the gas cabinet sealing oil composition provided by the embodiment of the present application is relatively good in main performance compared with the oil products of major competing products in the existing market, and has a significant advantage in low temperat...

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Abstract

The invention discloses a high-density, low-condensation-point special sealing oil composition for gas cabinets, which is characterized in that the density of the sealing oil composition is 880kg / m 3 above, the freezing point is lower than -38°C, the components of the sealing oil composition include base oil and additives, the base oil is a mixture of paraffinic base oil and naphthenic base oil; the additive includes a pour point depressant, the present invention The beneficial effect is: when N14B and ‑20°C general-purpose transformer oil are combined and blended, when the two base oils are mixed, there will be a self-depressing phenomenon; when N14B and ‑20°C general-purpose transformer oil are combined and blended, self-depreciation On the basis of this, the superior pour point depressing effect is further obtained, thus unexpectedly obtaining a low pour point of -50°C, and through the pour point depressing of polymethacrylate + polyacrylate and polymethacrylate, it is suitable for The sealing oil composition required by the suitable viscosity and viscosity-temperature characteristics of the sealing oil of the dry gas cabinet, higher oil density, lower freezing point and good anti-emulsification and water separation performance.

Description

Technical field: [0001] The invention belongs to the technical field of lubricating oil compositions, and more specifically relates to a high-density, low-condensation-point special sealing oil composition for gas cabinets. Background technique: [0002] Dry gas cabinet sealing oil is the medium used for gas cabinet sealing. It mainly plays the role of sealing gas and lubricating pistons to ensure efficient and stable operation of the system. Dry-type gas holder is a kind of gas holder, which is used to store various fuel gases. In order to meet the requirements of storage pressure and storage volume, dry-type gas holders are developing in the direction of high pressure and large size, and the storage pressure can reach 23kPa or even higher, and the volume has reached 300,000 m 3 Even larger, which has stricter requirements for the gas cabinet seal oil. The main function of the dry-type gas cabinet is to collect, store, transport and distribute gas, gas, etc. The shape of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N40/34C10N30/02C10N30/06C10N30/12
CPCC10M169/048C10M2207/282C10M2209/084C10M2205/026C10M2215/08C10M2215/223C10M2203/1065C10M2205/163C10M2209/104C10M2209/105C10M2217/041
Inventor 付涛张广昊郑艳郭孟凯陈斌赵之玉刘新强
Owner KASONG SCI & TECH
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