CN202638099U - Low-pressure combined precision filter - Google Patents
Low-pressure combined precision filter Download PDFInfo
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- CN202638099U CN202638099U CN 201220319709 CN201220319709U CN202638099U CN 202638099 U CN202638099 U CN 202638099U CN 201220319709 CN201220319709 CN 201220319709 CN 201220319709 U CN201220319709 U CN 201220319709U CN 202638099 U CN202638099 U CN 202638099U
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Abstract
A low-pressure combined precision filter comprises a housing, a water inlet end, a filter element, a spring, a sealing head, a water outlet end, a water passage and a sealing head seat, wherein the water inlet end, the water outlet end and the water passage for connecting the water inlet end with the water outlet end are arranged on the housing; the sealing head seat is arranged on the water passage; the filter element is arranged in the sealing head seat; the spring is pressed on the filter element; and the sealing head is a detachable sealing head arranged on the sealing head seat in a matching manner, and covers the spring and the filter element. The low-pressure combined precision filter is mainly used in places where water vapor samples in thermal power furnaces or nuclear power furnaces need to be analyzed, is mounted before an on-line water quality analysis meter, and can select different kinds of filter elements through being in combination with self characteristics of the water quality analysis meter to enable sample data measured by the water quality analysis meter to be the most representative. The low-pressure combined precision filter has the advantages that the maintenance quantity is small, different functional filter elements can be selected according to measuring instruments, the service life is long, and the filter element is convenient to replace. The low-pressure combined precision filter is ideal low-pressure precision filtration equipment for water vapor samples in current thermal power/nuclear power industry.
Description
Technical field
The utility model relates to low pressure accurate filter, especially the low-voltage combined type accurate filter before the industry steam flow process monitoring sampling point analysis meters such as thermoelectricity, nuclear power.
Background technology
The industry steam flow processs such as thermoelectricity, nuclear power and petrochemical industry monitoring sampling point is numerous, the different analysis meter of each sampling point preparation, when pursuing simply high accuracy, smart instrumentation, often ignored the filter of installing before the instrument, present existing filter core is generally Wound-rotor type or filtering net type filter element, can only play basic sample filtering effect, filter core is universal substantially and filtering function is single, does not select suitable filter plant for the analytical characteristic of each analysis meter.
Because the analytical characteristics of each analysis meter is variant, but a kind of filter core independent assortment, long service life, and the filter core filter that is easy to change just seems particularly important simultaneously.
Below in conjunction with the main project of thermoelectricity, nuclear power and the monitoring of petrochemical industry steam flow process, the type selecting feature of filter is described (table 1):
| Project | Measuring principle | The filter core characteristic | Remarks |
| Electrical conductivity detects | Conductive ion in the test sample adopts the stainless steel conductance electrode | Common coarse filtration, need filtering magnetic class impurity | As select filter core improper, and then can not reflect the ionized impurity content in the actual water, measured value can be on the low side; Magnetic class impurity absorption is used the variation that causes the measuring cell parameter at conductance electrode simultaneously, and measured value is inaccurate. |
| PH detects | Detect the hydrogen ion concentration in the sample water, adopt glass electrode | Common fine filtering, except oiliness class impurity | As select filter core improper, then can the too much conductive ion of filtering, the electrical conductivity of water reduces, this plays the variation of current potential and unstable, causes measuring numerical value change and unstable, as oiliness class impurity absorption in the glass electrode meeting so that the response speed of electrode obviously reduce. |
| Dissolved oxygen detects | Detect the oxygen content in the sample water, adopt the embrane method electrode | Secondary filter, except oiliness class impurity | As select filter core improper, on oxygen film surface, the obvious reduction of the response speed of electrode or measured value are on the low side such as oiliness class impurity absorption. |
| Sodium ion detects | Detect the Na ion concentration in the sample water, adopt glass electrode | High-accuracy filtration, except oiliness class impurity, and the filter core material does not contain the sodium composition | As select filter core improper, as oiliness class impurity absorption in the glass electrode meeting so that the response speed of electrode obviously reduce, can contaminated samples as containing the sodium composition in the filter core material. |
| Silicon, phosphorus detect | Detect silicon, phosphorus content in the sample water, adopt colorimetric method | High-accuracy filtration, except oiliness class impurity, and the filter core material is not siliceous, the phosphorus composition | As select filter core improper, such as oiliness class impurity absorption in colorimetric pool or the meeting of luminosity mirror so that the absorbance of instrument is influenced, measured value is unstable, as siliceous in the filter core material, the phosphorus composition can contaminated samples. |
The utility model mainly closes the aspect from the application places of filter to be considered, for avoiding common filter element filtering function singleness, closing and consider to invent.
Summary of the invention
The utility model purpose is to propose a kind of New Low Voltage combined accurate filter.But propose a kind of structure of filter element independent assortment, lossless parts in the filter core remove and install filter core convenient, need not dismantle filter body and just can change filter core easily.
Technical solutions of the utility model are that the low-voltage combined type accurate filter comprises housing, water inlet end, filter core, spring, end socket, water side, waterway, end socket seat; The waterway that housing is provided with water inlet end, water side and connects water inlet end, water side, waterway is provided with the end socket seat, the end socket seat is built-in with filter core, and spring is pressed on the filter core; Described end socket is the dismountable end socket of coupling on the end socket seat, covers on spring and filter core.
Improvement of the present utility model is that filter core is the modular filter filter core.Filter core has the filter core of replacing capable of being combined in the inside of housing.The utility model can carry out according to different filtration occasion needs the voluntarily combination of filter core, thereby realize the filter effect of expectation, but filter core independent assortment structure, the utility model filter element is divided into main filter core and functional filter element, main filter core and functional filter element can freely make up, main filter core plays the coarse filtration effect in whole filtration, for being installed, attached filter core provides a platform support simultaneously, and adopt holddown spring that filter core is effectively fixed, can carry out independent assortment to both according to different occasions (coarse filtration, smart filtration, oil strain, filter magnetisable material etc.).
The beneficial effects of the utility model are, but filter core independent assortment structure, lossless parts in the filter core, the utility model filter housing is stainless steel, compare traditional lucite filter longer service life, filter core has also adopted material or the reproducible filter cores such as metal simultaneously, realizes the filter core free of replacement.Remove and install filter core convenient, the utility model is provided with detachable end socket in the side of sample water current, need not dismantle filter body and just can change filter core easily.The present invention is mainly used in the occasion that the steam sample need to be analyzed in thermoelectricity, the nuclear power stove, before being installed on the online water analysis instrument, simultaneously but the characteristics of binding analysis instrument self can be selected different types of filter core, so that the measured sample data of water quality analyzing instrument is the most representative.The utlity model has maintenance little, can select different functional filter core, long service life by measuring instrument, the advantage such as filter element replacing is convenient is the desirable steam sample low pressure secondary filter equipment of Present Thermal Power, nuclear power.
Description of drawings
Fig. 1 is structure chart of the present utility model.
The specific embodiment
Shown in the figure, the low-voltage combined type accurate filter comprises housing, water inlet end 1, filter core 2, spring 3, end socket sample water water side 5, housing 6, waterway 7, end socket seat 8; The waterway that housing is provided with water inlet end, water side and connects water inlet end, water side, waterway are provided with and cut that hollow end socket seat, end socket seat are built-in with Combined filter element 2 on waterway, and water inlet end just can flow to the water side by filter core.Spring 3 is pressed on the filter core; Described end socket is the dismountable end socket of coupling on end socket seat 8,, also can cover on the end socket seat by locking mechanisms such as collision beads on spring and filter core by screw lid.Filter core has the filter core of replacing capable of being combined in the inside of housing.The utility model can carry out according to different filtration occasion needs the voluntarily combination of filter core, thereby realize the filter effect of expectation, sample water enters filter by the sample water inlet, filter core by replacing capable of being combined, sample water is outside to filter core again from core inner, impurity in the sample water etc. is attached to filter core inside, thereby the water quality that guarantees the water outlet of sample water meets the filtering accuracy requirement.Filter core is divided into main filter core and attached filter core, but by different filtration requirement independent assortments, consists of Combined filter element.
By dismounting end socket replaceable filter filter core, be provided with holddown spring in the filter housings, thereby guarantee the quality of fit of Combination filter element.
Table 2 is filter cartridge construction explanation of the present utility model.
Claims (2)
1. the low-voltage combined type accurate filter is characterized in that comprising housing, water inlet end, filter core, spring, end socket, water side, waterway, end socket seat; The waterway that housing is provided with water inlet end, water side and connects water inlet end, water side, waterway is provided with the end socket seat, the end socket seat is built-in with filter core, and spring is pressed on the filter core; Described end socket is the dismountable end socket of coupling on the end socket seat, covers on spring and filter core.
2. low-voltage combined type accurate filter according to claim 1 is characterized in that filter core is the modular filter filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319709 CN202638099U (en) | 2012-07-04 | 2012-07-04 | Low-pressure combined precision filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319709 CN202638099U (en) | 2012-07-04 | 2012-07-04 | Low-pressure combined precision filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202638099U true CN202638099U (en) | 2013-01-02 |
Family
ID=47407282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319709 Expired - Lifetime CN202638099U (en) | 2012-07-04 | 2012-07-04 | Low-pressure combined precision filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202638099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421294A (en) * | 2018-04-04 | 2018-08-21 | 上饶市欧德环保有限公司 | A kind of magnetic and non magnetic contamination filter |
-
2012
- 2012-07-04 CN CN 201220319709 patent/CN202638099U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421294A (en) * | 2018-04-04 | 2018-08-21 | 上饶市欧德环保有限公司 | A kind of magnetic and non magnetic contamination filter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |