CN207585427U - A kind of high temperature resistant tank level monitor device - Google Patents

Abstract

The utility model discloses a kind of high temperature resistant tank level monitor devices, and gassing pipe is equipped with including fused salt storage tank, at the top of fused salt storage tank and extends into the gas relief line inside fused salt storage tank from top, gas relief line is connected with fused salt storage tank inner cavity；Gas relief line top is equipped with first pressure sensor, and gassing pipe top is equipped with second pressure sensor, and first pressure sensor connect pressure difference change device respectively with second pressure sensor；Gassing pipe is connected with third appendix, and gas relief line is connected with the second appendix；Second appendix and third appendix are connected with the first appendix, and the first appendix is connected with external air source.The present apparatus uses constant pressure Tiny pore air blast, different using the pressure under different liquid level depth, and liquid level is calculated according to liquid level variation, simple in structure without external cooling installation, easy to implement, cheap.

Description

A kind of high temperature resistant tank level monitor device

Technical field

The utility model is related to high temperature liquid level monitoring technical fields, the particularly a kind of resistance to height of photo-thermal power station salt storage tank Warm level monitoring device.

Background technology

Solar energy is most widely used at present, with fastest developing speed, technology novel energy the most ripe.However, by natural season The influence changed at random of section and weather, solar energy also show randomness, fluctuation and intermittent feature.Therefore, photovoltaic Electricity generation system is difficult to provide the energy of continuous-stable in its independent operating.

Being incorporated into the power networks for electric energy needs electric energy to have stability, due to solar energy itself with intermittence and not The imbalance problem of the characteristics of stability, peak times of power consumption and the output of low ebb phase electric power and the stability of raising power grid then have non- Often important meaning.Solar-thermal generating system can get up energy storage using heat storage can, then energy is passed when needed It passs away, thus with the ability that can adjust load.Therefore, the solar heat power generation system with heat-storing device can improve The generating efficiency of system, the stability and continuity for reducing cost of electricity-generating, improving solar heat power generation system, so that system is not having Having can continue to meet power generation needs when solar radiation energy.Solar heat power generation system with large capacity heat-storing device is very Peak-load regulating ability is participated in can also have, improves power grid；Flexibility and that ability for receiving fluctuation regenerative resource, it is friendly Ground accesses power grid.It is made to have the ability to compare favourably with the power generation mode of traditional coal electricity, fuel gas generation, nuclear power, has work For basic Power Support and the potentiality of conventional power plants competition, this is that photovoltaic generating system and wind generator system are incomparable, It is also the important reason of its development.

At present, as component devices fused salt storage tank important in the energy-storage system of photo-thermal power station, original capital nearly 5% is accounted for Left and right, and one of storage tank important accessory is used as, the level monitoring device of resistance to 250 DEG C or more high temperature accounts for about the original throwing of energy-storage system The 20% of money, it is very expensive.

Existing photo-thermal power station tank level monitor device generally using heat safe radar level gauge, needs in operation Continue on blowback gas shielded probe, outside need cooled down using water or other cryogenic gas, to electronic component into Row protection, and it is very expensive.

Utility model content

The utility model provides a kind of high temperature resistant tank level monitor device, simple in structure without external heat sink, It is easy to implement, it is cheap.

Scheme is used by the utility model solves its technical problem：A kind of high temperature resistant tank level monitor device melts Salt tank top is equipped with gas relief line and extends into the gassing pipe inside fused salt storage tank from top, and gas relief line is stored up with fused salt Tank inner cavity is connected；

Gas relief line top is equipped with first pressure sensor, and gassing pipe top is equipped with second pressure sensor, the first pressure Force snesor connect the positive and negative anodes of pressure difference change device with second pressure sensor respectively, and pressure difference transmitter is connected with computer；

Gassing pipe is connected with third appendix, and gas relief line is connected with the second appendix；Second appendix and third are defeated Tracheae is connected respectively with the first appendix, and the first appendix is connected with external air source.

Further second appendix is equipped with anode chamber pressure-regulating valve door, and third appendix is equipped with anode chamber pressure Control valve.

Further fused salt storage tank periphery is enclosed with insulating layer.

The further insulating layer top is equipped with the protective shell of protection gassing pipe and gas relief line.

Further first appendix is equipped with preheater and filter pressure relief valve.

The further preheater is snake pipe, and preheater is contacted with fused salt tank wall.

The further fused salt storage tank periphery is enclosed with insulating layer, and preheater insulation layer covers.

The beneficial effects of the utility model are：

Only have gassing pipe to be contacted with high-temp liquid in the present apparatus, so monitoring element is without additional heat sink, knot Structure is simple, cheap.Monitoring device is not in direct contact with high-temp liquid, does not need to external cooling installation, simple in structure, price It is cheap.

Main parts size needed for monitoring is integrated on one piece of panel, is positioned over tank top platform, and is placed on protection In shell, it is easy for installation and maintenance.Full mechanical, good airproof performance, failure rate is low, and maintenance is smaller.

Using filter device pressure reducing valve, the compressed gas of photo-thermal power station offer is provided, reduces cost.

Pressure-regulating valve door can be according to different medium viscosity-adjusting agent flow so that the present apparatus scope of application is wider.

Preheater is placed in insulating layer, and gas is heated using the temperature of tank body itself, reduces cost.

Description of the drawings

Fig. 1 is high temperature resistant tank level monitor apparatus structure schematic diagram；

In figure：1st, fused salt storage tank；2nd, gassing pipe；3rd, gas relief line；4th, cathode chamber pressure-regulating valve door；5th, cathode chamber pressure Force regulating valve door；6th, protective shell；7th, insulating layer；8th, pressure difference transmitter；9th, the first appendix；10th, the second appendix；11st, third Appendix；12nd, filter pressure relief valve；13rd, preheater；14th, first pressure sensor；15th, second pressure sensor；16th, it calculates Machine.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

【Embodiment 1】

As shown in Figure 1, a kind of high temperature resistant tank level monitor device, including fused salt storage tank 1,1 top of fused salt storage tank Extend into the gas relief line 3 inside fused salt storage tank 1 equipped with gassing pipe 2 and from top, gas relief line 3 in fused salt storage tank 1 Chamber is connected；3 top of gas relief line is equipped with first pressure sensor 14.

2 top of gassing pipe is equipped with second pressure sensor 15, first pressure sensor 14 and second pressure sensor 15 The positive and negative anodes of connection pressure difference change device 8, pressure difference transmitter 8 are connected with computer 16 respectively；

Gassing pipe 2 is connected with third appendix 11, and gas relief line 3 is connected with the second appendix 10；Second appendix 10 It is connected respectively with the first appendix 9 with third appendix 11, the first appendix 9 is connected with external air source.

In use, by gassing pipe 2 as blowing in fused salt tank body 1, changed using pressure sensor monitoring pressure difference.Because Constant pressure blowing method is employed, gas can stablize output, and the pressure that differential pressure transmitter measures is not influenced by the variation of blow gas pressure, The variation of gas blow pipe outlet pressure is exactly the variation of fused salt liquid level in storage tank, and the signal that differential pressure transmitter 8 exports is unique, only with melting Salt liquid level is into correspondence.Computer is passed the signal along to again, and liquid level is obtained by calculation.It only blows when in use Feed channel 2 is directly contacted with high-temp liquid, other more fragile monitoring elements are then avoided to be contacted with high-temp liquid, without volume Outer heat sink cools down to monitoring element, reduces cost.Main parts size needed for monitoring can be integrated in one simultaneously On block panel, tank top platform is positioned over, is easy for installation and maintenance.Full mechanical, good airproof performance, failure rate is low, safeguards Amount is smaller.

【Embodiment 2】

As shown in Figure 1, the second appendix 10 is equipped with anode chamber pressure-regulating valve door 5, third appendix 11 is equipped with just Pole room pressure-regulating valve door 4.First appendix 9 is equipped with filter pressure relief valve 12.

Wherein anode chamber pressure-regulating valve door 5 can be according to the viscosity tune of different medium with cathode chamber pressure-regulating valve door 4 Amount of restriction so that the whole device scope of application is wider.Filter pressure relief valve 12 also carries out the air source that photo-thermal electric field provides simultaneously Decompression.

【Embodiment 3】

As shown in Figure 1,1 periphery of fused salt storage tank is enclosed with insulating layer 7, the first appendix 9 is equipped with preheater 13, wherein in advance Hot device 13 is snake pipe, and preheater 13 is contacted with 1 outer wall of fused salt tank body, and insulation layer 7 covers.

The insulating layer 7 of 1 periphery of fused salt storage tank can reduce the loss of heat.And 9 preheater 13 can on the first appendix To be heated to gas, temperature is avoided medium to be caused to solidify plugging less than medium condensation point, avoiding pressure measurement failure leads to liquid level Count failure.Preheater 13 is placed in insulating layer 7 simultaneously, using fused salt tank body 1, the temperature of itself heats air, saves Cost.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of high temperature resistant tank level monitor device, including fused salt storage tank（1）, it is characterised in that：The fused salt storage tank（1）Top Portion is equipped with gas relief line（3）And extend into fused salt storage tank from top（1）Internal gassing pipe（2）, gas relief line（3）With melting Salt storage tank（1）Inner cavity is connected；

Gas relief line（3）Top is equipped with first pressure sensor（14）, gassing pipe（2）Top is equipped with second pressure sensor （15）, first pressure sensor（14）With second pressure sensor（15）Respectively with pressure difference transmitter（8）Positive and negative anodes connection, pressure Poor transmitter（8）With computer（16）It is connected；

Gassing pipe（2）With third appendix（11）It is connected, gas relief line（3）With the second appendix（10）It is connected；Second gas transmission Pipe（10）With third appendix（11）Respectively with the first appendix（9）It is connected, the first appendix（9）It is connected with external air source.

2. a kind of high temperature resistant tank level monitor device according to claim 1, it is characterised in that：Second appendix （10）It is equipped with anode chamber pressure-regulating valve door（5）, third appendix（11）It is equipped with cathode chamber pressure-regulating valve door（4）.

3. a kind of high temperature resistant tank level monitor device according to claim 1, it is characterised in that：The fused salt storage tank （1）Periphery is enclosed with insulating layer（7）.

4. a kind of high temperature resistant tank level monitor device according to claim 3, it is characterised in that：The insulating layer（7） Top is equipped with protection gassing pipe（2）And gas relief line（3）Protective shell（6）.

5. a kind of high temperature resistant tank level monitor device according to claim 1, it is characterised in that：First appendix （9）It is equipped with preheater（13）With filter pressure relief valve（12）.

6. a kind of high temperature resistant tank level monitor device according to claim 5, it is characterised in that：The preheater（13） For snake pipe, and preheater（13）With fused salt storage tank（1）Outer wall contacts.

7. a kind of high temperature resistant tank level monitor device according to claim 6, it is characterised in that：The fused salt storage tank （1）Periphery is enclosed with insulating layer（7）, and preheater（13）Insulation layer（7）Covering.