CN207336475U - A kind of discontinuous saturated salt solution standard humidity case - Google Patents

Abstract

The utility model discloses a kind of discontinuous saturated salt solution standard humidity case, including outer container and interior case, outer chamber door energy tight closure outer container, and interior case is placed in outer container；Its feature is used for the hand-held hand-held fixed strip for removing interior chamber door to be equipped with interior chamber door；Handle hole is equipped with interior chamber door, handle hole is connected with plastic gloves, and handle hole is stamped escutcheon；The upper sheaf space and middle space of inner space are used to place tested instrument, and round vent has been spaced on upper spacer and lower clapboard；Lower layer space is placed with drawer, and drawer is equipped with saturated salt solution；The axis that the motor of stirring module is connected is connected by upper spacer, lower clapboard and stirring-head；The temperature-humidity signal of Temperature Humidity Sensor detection inner space can be transmitted to display and control terminal；Ventilation module is installed on middle space；Power cord, signal wire extend the outside of outer container through threading hole, are blocked up threading hole sternly with after sponge block parcel power cord, signal wire.Solution is placed in drawer, readily replaceable and reusable.

Description

A kind of discontinuous saturated salt solution standard humidity case

Technical field

A kind of humidity generator is the utility model is related to, moisture measurement is applied in a manner of relative humidity fixing point and is led Domain.

Background technology

The saturated solution of different salt specifically can ideally be used as fixed point humidity generator.It is closed at one Load the saturated solution of certain suitable salt in container, be statically placed in isoperibol, after enough time, container inner salt, salt Solution, top headroom are formed a three-phase equilibrium system.Saturated salt solution humidity standard realizes that equipment is simple, cost is low It is honest and clean, but very useful stabilization.Under conditions of constant temperature and fully balance, the equilibrium system of water vapor pressure stabilization can be produced, Reach the condition calibrated.The Humidity fixed points of various salt are highly stable, can recover again after destruction, and repeated pole It is good.Its performance is better than dynamic method humidity generator at many aspects, so being widely used in moisture measurement calibration field.Salt is in itself Property determine the humidity value of its saturated solution, at a constant temperature, the saturated solution of salt a kind of correspond to one it is fixed Humidity value, a series of discontinuous humidity points can be formed using different salts.

There is several use in the existing humidity generator based on saturated salt solution：1. the three-phase heat of saturated salt solution Mechanical balance is easily influenced by ambient temperature change, therefore the product not controlled strictly temperature, due to environmental temperature fluctuation Cause humidity that there is very big error；2. saturated salt solution equilibration time is grown, space is bigger, and equilibration time is longer, therefore on the market The salting liquid humidity cabinet of common low capacity, should not carry out the testing calibration of large-tonnage product.

The content of the invention

The purpose of this utility model is to provide a kind of discontinuous saturated salt solution standard humidity case.

The purpose of this utility model is achieved in that a kind of discontinuous saturated salt solution standard humidity case, bag The inner space of outer container, interior case and interior case is included, outer container is hinged with outer chamber door, and outer chamber door passes through hasp and the magnetic for being located at doorframe both sides Property strip of paper used for sealing tight closure outer container, interior case is placed in outer container, is inner space in interior case, and interior case passes through interior chamber door tight closure；Its It is characterized in that：It is equipped with interior chamber door and is used for the hand-held hand-held fixed strip for removing interior chamber door；Handle hole is equipped with interior chamber door, is grasped Make hole with plastic gloves to be connected, handle hole is stamped escutcheon, when verification process needs adjusting instrument, removes escutcheon, passes through handle hole Internal volume is operated, and inner space is still in sealing state in operation；The inner space on every Plate, lower clapboard are separated into upper, middle and lower-ranking space, and upper sheaf space and middle space are used to placing tested instrument, it is described on every Round vent is spaced on plate and lower clapboard, upper spacer is smaller 50cm than the length of lower clapboard, is to be operated under closed state Hole operation leaving space；Lower layer space is placed with drawer, and drawer is equipped with saturated salt solution；Stir the shell of the motor of module On inner top surface fixed to interior case；The axis that the motor of stirring module is connected is connected by upper spacer, lower clapboard and stirring-head, is stirred Mixing head can be stirred in drawer；The center in the internally placed space of Temperature Humidity Sensor, the temperature of Temperature Humidity Sensor detection Moisture signal can be transmitted to display and control terminal；Ventilation module is installed in middle space, can accelerate inner space gas flow rates, Accelerate equilibrium process；Power cord, the signal wire of tested instrument and each module extend the outside of outer container through threading hole, and threading hole is circle Cylindricality through hole connects the external environment condition outside inner space and outer container, is blocked up threading hole with after sponge block parcel power cord, signal wire Sternly.

Outer container and interior case are made of transparent acrylic material, can be easy to observation internal by the reading of test examination instrument and have enough Bearing capacity；The fixed screw in mounting hole that interior chamber door passes through its surrounding is fixed on interior case.

A kind of discontinuous saturated salt solution standard humidity case, it is characterised in that：In the interior case being placed in outer container There is spacing between top surface, bottom surface, left surface, right flank, five faces inner face corresponding with outer container below between the sealing of 3cm Gap, is air in the inside of seal clearance, pressure is standard atmospheric pressure, can slow down the inner space of interior case and the external rings of outer container Heat transfer between border.

The stirring-head for stirring module is detachable, and can be detachably secured to by fixed plate in drawer, can be with pumping Drawer removes；Dismantle fixed plate before stirring-head stirring use.

The external environment condition joint of threading hole and outer container is equipped with airtight mouth-locking bag, and power cord, signal wire draw from threading hole After going out, pocket is locked, reduces air circulation.

The display and control terminal is arranged on outer box top, including power supply, temperature-humidity signal modular converter, microprocessor, touch Screen, power supply, temperature-humidity signal modular converter, touch-screen are connected with microprocessor respectively；Temperature Humidity Sensor connection humiture letter Number modular converter, signal transmission to display and control terminal；Ventilation module is connected to microprocessor and controls ventilation by microprocessor；Stir module It is connected to microprocessor and rotation is controlled by microprocessor.

Had the advantage that compared to traditional based on saturated salt solution humidity generator, the utility model：1. dissolved in salt Process increase stirring module and ventilation module, can accelerate solution dissolving and internal gas flow, so as to shorten equilibration time；It is 2. molten Liquid is placed in drawer, readily replaceable and reusable；3. Double-layer acrylic structure, can effectively slow down inner space and external rings Heat transfer between border, slows down influence of the variation of ambient temperature to interior humidity.

Brief description of the drawings

The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the outer chamber door of opening of the utility model and the structure diagram of interior chamber door.

Fig. 2 is the structure diagram of interior chamber door.

Fig. 3 is the structure diagram of stirring module.

Fig. 4 is the circuit theory schematic diagram of the utility model.

Embodiment

First, structure

The utility model structure is as shown in Figure 1, be broadly divided into the part of inner space three of outer container, interior case and interior case.1. Interior case 5 is placed in outer container 1, corresponding with outer container 1 interior in the top surface of interior case 5, bottom surface, left surface, right flank, five faces below There is the seal clearance that spacing is 3cm between face, be air in the inside of seal clearance, pressure is standard atmospheric pressure, it is therefore an objective to is subtracted Slow heat transfer between inner space and external environment condition, while the transparent acrylic that interior case, outer container material are 5mm thickness, easy to see Inside is examined by the reading of test examination instrument and there are enough bearing capacities.

2. outer container 1 is hinged with outer chamber door 2, outer chamber door 2 is transparent acrylic material, and the doorframe both sides of outer chamber door 2 are magnetic Strip of paper used for sealing 3, hasp 4 is closed after shutdown is pressed and sealed door, and outer chamber door 2 passes through 4 tight closure outer container 1 of magnetic strip of paper used for sealing 3 and hasp.

3. chamber door 15 in removes the fixed screw in surrounding mounting hole as shown in Fig. 2, replacing solution or during by test examination instrument, The interior hand-holdable fixed strip 18 of chamber door 15 is entirely removed, if verification process needs adjusting instrument, be can use lower escutcheon 17, is passed through handle hole 16 Internal volume is operated, and handle hole 16 is connected with plastic gloves, and sealing state is still in operating process inner space.

4. the inner space of case is closed by interior chamber door 15 and fixed in, and inner space is separated into by upper spacer 6, lower clapboard 7 Upper, middle and lower-ranking space, upper sheaf space and middle space are placed tested instrument, are spaced on the upper spacer 6 and lower clapboard 7 Round vent is arranged with, upper spacer 6 is smaller 50cm than the length of lower clapboard 7, can be that operation hole operation leaves sky under closed state Between；Lower layer space is placed with drawer 8, and the inside of drawer 8 is equipped with saturated salt solution；It is deep by upper spacer 6, lower clapboard 7 to stir module 9 Enter salting liquid to be stirred, the stirring-head 93 of stirring module 9 is detachable, and removes with drawer 8, and moving process uses fixation Plate 13 fixes it, and the shell for stirring the motor 91 of module 9 is fixed on the inner top surface of interior case；Temperature Humidity Sensor 10 is placed on The center of inner space, signal transmission to display and control terminal 12；Ventilation module 11 is installed in middle space, can accelerate inner space Gas flow rates, accelerate equilibrium process；The power supply of tested instrument and each module, signal wire lead to line through threading hole 14 to outside Hole 14 connects inner space and external environment condition for cylindrical hole, wrapped up with sponge block block up after electric wire it is tight, and threading hole 14 with it is outer After portion environment joint has airtight mouth-locking bag, line to draw, pocket is locked, reduces air circulation.

As shown in figure 3, the stirring module 9 is made of motor 91, axis 92, stirring-head 93, the stirring-head 93 is six leaves Straight leaf disc turbine agitator, 92 length of axis exceed the 0.5cm of 7 length of partition plate, and 93 height of stirring-head is 13.5cm, internal empty Between lower floor's 7 distances from bottom from solution bottom to partition plate be 14.5cm.

2nd, circuit

Circuit theory schematic diagram is as shown in figure 4, display and control terminal 12 is arranged on the top of outer container 1, including power supply, temperature-humidity signal turn Block, microprocessor, touch-screen are changed the mold, power supply, temperature-humidity signal modular converter, touch-screen are connected with microprocessor respectively.Touch Screen connects temperature for display and human-computer interaction, the center in 10 internally placed space of Temperature Humidity Sensor, Temperature Humidity Sensor 10 Moisture signal modular converter, signal transmission to display and control terminal 12；Ventilation module 11 is installed on middle level, and ventilation module 11 is connected to micro- place Manage device and ventilation is controlled by microprocessor, inner space gas flow rates can be accelerated, accelerate equilibrium process；Tested instrument and Ge Mo Power supply, the signal wire of block connect inner space and external environment condition through threading hole 14 to outside, threading hole 14 for cylindrical hole, use Blocked up sternly after sponge block parcel electric wire, and threading hole 14 has airtight mouth-locking bag with external environment condition joint, after line extraction, by pocket Locking, reduces air circulation.Stirring module is connected to microprocessor and controls stirring by microprocessor.

3rd, correction algorithm

According to《OIML_R_121 saturated salt solution relative humidity》11 kinds of salt temperature are corresponding with humidity in technical specification table 1 Table, when certain salt measurement temperature of useAt some section, table look-up to obtain this section be located at temperature [,) between,It is right The humidity value answered is,Corresponding humidity value is, then humidity at this timeAs shown by the equation：

4th, implementation steps

The utility model measurement process is as follows：1. by least 4L pure water with more than 1/3 mass of salt solubility salt put as In drawer 8, and drawer 8, stirring-head 93 and fixed plate 14 are put into humidity cabinet lower floor, take out fixed plate 14 again by 93 He of stirring-head Axis 92 fixes；2. tested instrument is placed on partition plate 6,7, it is ensured that meter reading is visible；3. opened by display and control terminal 13 Module and ventilation module are stirred, accelerates solution dissolving and internal gas flow；4. when the Temperature Humidity Sensor in center of inside When measuring temperature change and being less than 0.5%RH less than 0.2 DEG C, humidity change, it is automatically closed and stirs module and ventilation module, touch-screen Prompting can start measurement record, and show humidity correction value；5. manually reading the reading of tested instrument, and record.

Claims (6)

1. a kind of discontinuous saturated salt solution standard humidity case, includes the inner space of outer container, interior case and interior case, outer container is hinged with Outer chamber door, outer chamber door are placed in outer container by hasp and the magnetic strip of paper used for sealing tight closure outer container for being located at doorframe both sides, interior case, interior case Interior is inner space, and interior case passes through interior chamber door tight closure；It is characterized in that：It is equipped with to be used to hold on interior chamber door and removes interior case The hand-held fixed strip of door；Handle hole is equipped with interior chamber door, handle hole is connected with plastic gloves, and handle hole is stamped escutcheon, works as inspection When determining process needs adjusting instrument, escutcheon is removed, is operated by handle hole internal volume, in operation inner space It is still in sealing state；The inner space is separated into upper, middle and lower-ranking space, upper sheaf space by upper spacer, lower clapboard It is used to place tested instrument with middle space, round vent, upper spacer has been spaced on the upper spacer and lower clapboard It is smaller 50cm than the length of lower clapboard, it is that hole operation leaving space is operated under closed state；Lower layer space is placed with drawer, in drawer Portion is equipped with saturated salt solution；The shell for stirring the motor of module is fixed on the inner top surface of interior case；The motor of stirring module connects The axis connect is connected by upper spacer, lower clapboard and stirring-head, and stirring-head can be stirred in drawer；Temperature Humidity Sensor is placed In the center of inner space, the temperature-humidity signal of Temperature Humidity Sensor detection can be transmitted to display and control terminal；Ventilation module is installed on In middle space, inner space gas flow rates can be accelerated, accelerate equilibrium process；The power cord of tested instrument and each module, Signal wire extends the outside of outer container through threading hole, and threading hole connects the external rings outside inner space and outer container for cylindrical hole Border, is blocked up threading hole sternly with after sponge block parcel power cord, signal wire.

A kind of 2. discontinuous saturated salt solution standard humidity case according to claim 1, it is characterised in that：Outer container and interior case It is made of transparent acrylic material, can be easy to observation internal by the reading of test examination instrument and there are enough bearing capacities；Interior chamber door leads to The fixed screw in the mounting hole of its surrounding is crossed to be fixed on interior case.

A kind of 3. discontinuous saturated salt solution standard humidity case according to claim 1 or 2, it is characterised in that：It is being placed in There is spacing between the top surface of interior case in outer container, bottom surface, left surface, right flank, five faces inner face corresponding with outer container below It is air in the inside of seal clearance, pressure is standard atmospheric pressure, can slow down the inner space of interior case for the seal clearance of 3cm Heat transfer between the external environment condition of outer container.

A kind of 4. discontinuous saturated salt solution standard humidity case according to claim 1 or 2, it is characterised in that：Stir mould The stirring-head of block is detachable, and can be detachably secured to by fixed plate in drawer, can be removed with drawer；Stirring-head stirs Mix fixed plate of dismantling before use.

A kind of 5. discontinuous saturated salt solution standard humidity case according to claim 1 or 2, it is characterised in that：Threading hole Airtight mouth-locking bag is equipped with the external environment condition joint of outer container, power cord, signal wire are after threading hole extraction, by pocket lock Tightly, air circulation is reduced.

A kind of 6. discontinuous saturated salt solution standard humidity case according to claim 1 or 2, it is characterised in that：Described Display and control terminal is arranged on outer box top, including power supply, temperature-humidity signal modular converter, microprocessor, touch-screen, power supply, humiture Signal conversion module, touch-screen are connected with microprocessor respectively；Temperature Humidity Sensor connects temperature-humidity signal modular converter, signal It is transmitted to display and control terminal；Ventilation module is connected to microprocessor and controls ventilation by microprocessor；Stirring module be connected to microprocessor by Microprocessor control rotates.