CN206583844U - Steam dryness test equipment and system - Google Patents

Abstract

The utility model discloses a steam dryness testing device and system, wherein the shown steam dryness testing equipment comprises: a sampler, which can take steam samples; a dryness tester connected with the sampler; the dryness tester; The degree tester includes a conductivity meter, a temperature sensor, and a calculation module; the conductivity meter and the temperature sensor are electrically connected to the calculation module; the electrical signal output by the conductivity meter and the temperature signal output by the temperature sensor passed to the computing module. The steam dryness test equipment provided by the utility model realizes the online continuous measurement of the dryness, ensures the safe operation of the boiler, and provides a basis for improving the quality of steam injection and reducing underground water storage.

Description

Steam dryness test equipment and system

technical field

The utility model relates to the field of steam dryness test, in particular to a steam dryness test equipment and system.

Background technique

The dryness monitoring on the steam injection boiler adopts the principle of chemical analysis, and the dryness of the saturated steam is determined by measuring the chloride ion content in the saturated water. This manual testing method is affected by factors such as people and testing utensils, and the test error is relatively large, and it is troublesome, and the result is not intuitive.

Considering the above-mentioned deficiencies in chemical analysis, since most of the salts dissolved in saturated water are strong electrolytes, they are all ionized into ions in the water, and the conductivity test electrode is used to measure the conductivity (ie conductivity) of ions in saturated water to determine saturation. The salt content in the water can be used to calculate the dryness. Due to the different dryness of saturated steam, the concentration of ions in saturated water is different, that is, the concentration of ions is different, so the conductivity is also different. Different electrical conductivity (ie conductivity) corresponds to different steam dryness values.

According to electrochemical theory, the concentration of the electrolyte solution has an effect on the measurement of conductance. When the concentration of the solution is high, the electrostatic attraction between the ions will increase, which will affect the conductivity of the ions, so the measurement of the conductivity of the solution is more accurate for dilute solutions. It has been proved by many experiments that when the salt content of the saturated water sample changes, the electrostatic attraction between ions has little effect on the conductivity and cannot affect the measurement accuracy, so it can be ignored. Compared with the capacitance method and humidity method, the conductivity method can avoid high temperature and high pressure pipelines. It is only affected by the salt content in the saturated water sample and the saturated water temperature, and has high sensitivity and reliability. Therefore, the use of conductivity method to measure steam dryness is becoming more and more popular.

At present, some conductivity meters have realized the functions of temperature compensation, automatic range conversion, instrument automatic calibration and 4-20mA signal output by using microprocessor technology. The conductivity of a single solution in . For example, the GY2028 online conductivity meter produced by the Beijing Research Institute of Chemical Industry of the Nuclear Industry, but they still generally use manual sampling, the operation is complicated, and at the same time, online real-time measurement cannot be realized, and the result of measuring the steam dryness is not intuitive.

Utility model content

In view of the deficiencies of the prior art, it is necessary for the utility model to provide a steam dryness testing device and system to at least solve one of the above technical problems.

In order to achieve the above object, the utility model adopts the following technical solutions:

A steam dryness test equipment, comprising:

a sampler capable of taking a vapor sample;

A dryness tester connected with the sampler; the dryness tester includes a conductivity meter, a temperature sensor, and a calculation module; the conductivity meter and the temperature sensor are electrically connected to the calculation module; The electrical signal output by the conductivity meter and the temperature signal output by the temperature sensor are transmitted to the calculation module.

As a preferred implementation manner, a cooler is arranged between the sampler and the dryness tester, and the cooler can cool the vapor sample.

As a preferred embodiment, the sampler communicates with the dryness tester through a second pipeline;

The cooler includes a water tank, a circulation pipeline communicated with the water tank, and a water pump; the circulation pipeline is arranged around the second pipeline; the water pump can drive the water in the water tank to enter the circulation pipeline.

As a preferred implementation manner, the dryness tester further includes a display connected to the calculation module.

As a preferred implementation manner, the dryness tester further includes a printer connected to the computing module.

As a preferred embodiment, the dryness tester also includes a housing for accommodating the conductivity meter, a temperature sensor, and a computing module; the housing has a length of 25 to 35 centimeters and a width of 10 to 20 cm. cm.

As a preferred embodiment, the weight of the dryness tester is less than 5 kilograms.

A steam injection boiler outlet steam dryness test system, comprising:

steam injection boiler;

The steam dryness test equipment as described in any one of the above embodiments; the sampler of the steam dryness test equipment is connected to the outlet of the steam injection boiler.

A wellhead pipeline steam dryness testing system, comprising:

Pipelines connected to wellheads;

The steam dryness test equipment as described in any one of the above embodiments; the sampler of the steam dryness test equipment communicates with the pipeline.

As a preferred embodiment, the sampler is a sampling valve arranged on the pipeline.

The steam dryness test equipment provided by the utility model samples the steam through the sampler 5, then tests the conductivity of the steam sample through the conductivity meter, and uses a temperature sensor to measure the temperature of the steam sample, and finally obtains the temperature of the steam through the calculation module. Dryness. It can be seen that the test mechanism of the steam dryness test equipment provided by the utility model is simple, the instrument is easy to use, the test accuracy is high, the dryness can be automatically monitored and displayed, and a large amount of laboratory medicines and laboratory instruments are saved; at the same time, the operation is reduced. The labor intensity of personnel, indirect economic benefits and social benefits are remarkable. In addition, the steam dryness test equipment provided by the utility model realizes the online continuous measurement of the dryness, ensures the safe operation of the boiler, and provides a basis for improving the quality of steam injection and reducing underground water storage.

With reference to the following description and accompanying drawings, specific embodiments of the present utility model are disclosed in detail, indicating how the principle of the present utility model can be adopted. It should be understood that the embodiments of the present invention are not limited thereby in scope. Embodiments of the invention encompass many changes, modifications and equivalents within the spirit and scope of the appended claims.

Features described and/or illustrated with respect to one embodiment can be used in the same or similar manner in one or more other embodiments, in combination with, or instead of features in other embodiments .

It should be emphasized that the term "comprising/comprising" when used herein refers to the presence of a feature, integer, step or component, but does not exclude the presence or addition of one or more other features, integers, steps or components.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural view of a dryness tester provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of a steam dryness test system at the outlet of a steam injection boiler provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a wellhead pipeline steam dryness test system provided by an embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used herein in the description of the utility model is only for the purpose of describing specific implementations, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 to FIG. 3 , which are schematic diagrams of a steam dryness testing device provided by an embodiment of the present invention. In this embodiment, it includes: a sampler 5, which can take a steam sample; a dryness tester 3 communicated with the sampler 5; the dryness tester 3 includes a conductivity meter 10, a temperature sensor 20, And calculation module 30; The conductivity meter 10 and the temperature sensor 20 are electrically connected to the calculation module 30; the electrical signal output by the conductivity meter 10 and the temperature signal output by the temperature sensor 20 are transmitted to the calculation module Module 30.

The steam dryness test equipment provided in this embodiment samples the steam through the sampler 5, then tests the conductivity of the steam sample through the conductivity meter 10, and uses the temperature sensor 20 to measure the temperature of the steam sample plate, and finally passes the calculation module 30 Get the dryness of the steam. It can be seen that the test mechanism of the steam dryness test equipment provided by this embodiment is simple, the instrument is easy to use, the test accuracy is high, the dryness can be automatically monitored and displayed, and a large amount of laboratory medicines and laboratory instruments are saved; at the same time, the operation is reduced. The labor intensity of personnel, indirect economic benefits and social benefits are remarkable. In addition, the steam dryness test equipment provided by this embodiment realizes the online continuous measurement of the dryness, ensures the safe operation of the boiler 1, and provides a basis for improving the quality of steam injection and reducing underground water storage.

Considering that the steam at the outlet of the boiler 1 can reach a high temperature of more than 300 degrees, the steam needs to pass through the cooler 2 and become liquid before testing. Therefore, a cooler 2 may be provided between the sampler 5 and the dryness tester 3, and the cooler 2 can cool the vapor sample. Among them, the temperature sensor 20 measures the temperature of the cooled steam sample.

Specifically, the sampler 5 communicates with the dryness tester 3 through a second pipeline; the cooler 2 includes a water tank 4, a circulation pipeline communicated with the water tank 4, and a water pump; the circulation pipeline surrounds The second pipeline is provided; the water pump can drive the water in the water tank 4 to enter the circulation pipeline.

Wherein, the sampler 5 can be integrated with the dryness tester 3, for example, the sampler 5 is a sampling tube arranged on the housing of the dryness tester 3, and the sampling tube can be connected in series on the steam channel to realize real-time Steam sampling. In addition, the sampler 5 can also be a sampling valve, which can be connected to the dryness tester 3 through a pipeline. The sampling valve is connected to the steam delivery pipeline to collect steam samples in real time. In consideration of collecting steam samples in real time, a sample discharge port may be provided on the sampler or the dryness tester, so as to prevent too much sample liquid from accumulating in the sampler 5 or the dryness tester 3 and fail to test.

Please refer to FIG. 1, in the dryness tester 3, the conductivity meter 10 can measure the conductivity of the steam sample, and is connected to the calculation module 30 through wires, and correspondingly, the temperature sensor 20 is also connected to the calculation module 30 through wires. The calculation module 30 is a hardware structure, which can be a circuit board, CPU, PLC, single-chip microcomputer, etc. The calculation module 30 can calculate the steam dryness according to the electrical signal transmitted by the conductivity meter 10 and combined with the temperature measured by the temperature sensor 20.

In order to intuitively display the steam dryness, the dryness tester 3 further includes a display connected to the calculation module 30 . Further, the dryness tester 3 also includes a printer connected to the calculation module 30 .

For the convenience of hand-holding and portability, the dryness tester 3 also includes a housing that accommodates the conductivity meter 10, a temperature sensor 20, and a computing module 30; the length of the housing is 25 to 35 centimeters, and the width is 10 to 20 cm. At this time, the length and width of the dryness tester 3 are about the size of A4 paper.

In this embodiment, the dryness measurement range of the steam dryness test equipment is 5-90%; Temperature compensation can be performed during calculation, and the temperature compensation methods of the medium are divided into manual compensation and automatic compensation. The manual compensation temperature range is 10~40℃, and the automatic compensation temperature range is 10~100℃. The power consumption of the steam dryness test equipment is ≤1.5W; the weight of the instrument is <5kg.

As shown in Figure 2, in another embodiment of the utility model, a steam dryness test system at the outlet of the steam injection boiler 1 is also provided, including: the steam injection boiler 1; the steam dryness test described in any one of the above embodiments Equipment; the sampler 5 of the steam dryness test equipment is connected with the outlet of the steam injection boiler 1 .

As shown in Figure 3, in another embodiment of the present invention, a wellhead pipeline steam dryness test system is also provided, including: a pipeline connected to the wellhead; the steam dryness test equipment as described in any one of the above embodiments; The sampler 5 of the steam dryness test equipment is connected with the pipeline. Specifically, the sampler 5 is a sampling valve arranged on the pipeline.

Any numerical value cited herein includes all values from the lower value to the upper value in increments of one unit for the lower and upper values, with a separation of at least two units between any lower value and any higher value That's it. For example, if it is stated that a component quantity or process variable (such as temperature, pressure, time, etc.) has a value from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose Values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32, etc. are also explicitly listed in the specification. For values less than 1, one unit is considered to be 0.0001, 0.001, 0.01, 0.1, as appropriate. These are merely examples intended to be expressly stated, and it is considered that all possible combinations of numerical values recited between the lowest value and the highest value are expressly set forth in this specification in a similar manner.

Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", inclusive of at least the indicated endpoints.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of" describing a combination shall include the identified elements, ingredients, parts or steps as well as other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. Use of the terms "comprising" or "comprising" to describe a combination of elements, ingredients, parts or steps herein also contemplates an embodiment that consists essentially of these elements, ingredients, parts or steps. By using the term "may" herein, it is intended that inclusion of "may" in any of the described attributes is optional.

Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step may be divided into separate plural elements, ingredients, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not meant to exclude other elements, ingredients, parts or steps.

It should be understood that the foregoing description is for purposes of illustration and not limitation. Many implementations and many applications other than the examples provided will be apparent to those of skill in the art from reading the above description. The scope of the present teachings, therefore, should be determined not with reference to the above description, but should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for completeness. The omission from the preceding claims of any aspect of the subject matter disclosed herein is not intended to be a disclaimer of subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims (10)

1. a kind of steam quality test equipment, it is characterised in that including：

Sampler, it can take steam sample；

The mass dryness fraction tester being connected with the sampler；The mass dryness fraction tester include conductivity meter, temperature sensor and Computing module；The conductivity meter and the temperature sensor are electrically connected with the computing module；The conductivity meter output Electric signal and temperature sensor output temperature signal be transferred to the computing module.

2. steam quality test equipment as claimed in claim 1, it is characterised in that：The sampler and the mass dryness fraction tester Between be provided with cooler, the cooler can cool down the steam sample.

3. steam quality test equipment as claimed in claim 2, it is characterised in that：The sampler and the mass dryness fraction tester It is connected by second pipe；

Circulating line and water pump that the cooler includes water tank, connected with the water tank；The circulating line is around described Second pipe is set；The water pump can drive the water in the water tank to enter the circulating line.

4. steam quality test equipment as claimed in claim 1, it is characterised in that：The mass dryness fraction tester also include with it is described The display that computing module is connected.

5. steam quality test equipment as claimed in claim 1, it is characterised in that：The mass dryness fraction tester also include with it is described The printer that computing module is connected.

6. steam quality test equipment as claimed in claim 1, it is characterised in that：The mass dryness fraction tester also includes accommodating institute State the housing of conductivity meter, temperature sensor and computing module；The length of the housing is 25 to 35 centimetres, and width is 10 To 20 centimetres.

7. steam quality test equipment as claimed in claim 1, it is characterised in that：The weight of the mass dryness fraction tester is less than 5 Kilogram.

8. a kind of outlet of steam boiler steam quality test system, it is characterised in that including：

Injection boiler；

Steam quality test equipment as described in claim 1 to 7 is any；The sampler of the steam quality test equipment and institute Outlet of steam boiler is stated to be connected.

9. a kind of well head pipeline steam quality test system, it is characterised in that including：

Connect the pipeline of well head；

Steam quality test equipment as described in claim 1 to 7 is any；The sampler of the steam quality test equipment and institute Pipeline is stated to be connected.

10. well head pipeline steam quality test system as claimed in claim 9, it is characterised in that：The sampler is setting Sampling valve on the pipeline.