CN209014023U - A kind of transmitter defroster - Google Patents

Abstract

The utility model relates to instrument protection technology fields, and in particular to a kind of transmitter defroster, including connecting pipe and the sealing chamber being arranged between transmitter and shut-off valve, the sealing chamber is for holding No. 25 transformer oil；Pipe connection is introduced by positive pressure between positive pressure sealing chamber and positive pressure cutoff valve, positive pressure introduces the lower part that pipe extend into positive pressure sealing chamber；Pipe connection is introduced by negative pressure between negative pressure sealing chamber and negative-pressure stop valve, negative pressure introduces the lower part that pipe extend into negative pressure sealing chamber；It is connected between positive pressure sealing chamber and the positive pressure bellows of transmitter by positive pressure fairlead, positive pressure fairlead extend into the top of positive pressure sealing chamber；It is connected between negative pressure sealing chamber and the negative pressure bellows of transmitter by negative pressure fairlead, negative pressure fairlead extend into the top of negative pressure sealing chamber.The utility model not only save the cost, but also can ensure that the stabilization of instrument, reliability service, it is not influenced by environment temperature.

Description

A kind of transmitter defroster

Technical field

The utility model relates to instrument protection technology fields, and in particular to a kind of transmitter defroster.

Background technique

In Chemical Manufacture, the instrumented data of each on-line operation provides important references for technique production, in order to guarantee Instrument can continuously, accurately provide stable data, and this requires instrument maintenance personnel daily to the operation conditions progress of instrument Inspection and maintenance prevents instrument from breaking down, but in winter in weather, due to mercury dropped, for the instrument installed outdoors For, the instrument of liquid medium, undoubtedly a test are especially measured, for this purpose, protecting for the instrument for being equipped with connecting pipe Temperature is exactly steam tracing and two kinds of electric tracing nothing more than, and steam tracing needs to steam using the low pressure in technique for production Vapour, electric tracing need to provide 220V AC power source, and also to carry out the laying of cable, two kinds of heat tracing modes for production all Need to consume certain cost.

Summary of the invention

The purpose of the utility model is to overcome defects in the prior art, provide a kind of transmitter defroster, both Save the cost, and can ensure that the stabilization of instrument, reliability service, it is not influenced by environment temperature.

In order to achieve the above object, the technical solution adopted in the utility model is:

A kind of transmitter defroster provided by the utility model, including connecting pipe and setting transmitter and shut-off valve it Between sealing chamber, the sealing chamber is for holding No. 25 transformer oil；The sealing chamber includes positive pressure sealing chamber and negative pressure isolation Tank, the connecting pipe include positive pressure connecting pipe and negative pressure connecting pipe, and the positive pressure connecting pipe includes that positive pressure introducing pipe and positive pressure are drawn Outlet pipe, the negative pressure connecting pipe include that negative pressure introduces pipe and negative pressure fairlead；Between the positive pressure sealing chamber and positive pressure cutoff valve Pipe connection is introduced by positive pressure, the positive pressure introduces the lower part that pipe extend into positive pressure sealing chamber；The negative pressure sealing chamber and negative pressure Pipe connection is introduced by negative pressure between shut-off valve, the negative pressure introduces the lower part that pipe extend into negative pressure sealing chamber；The positive pressure every It is connected between tank and the positive pressure bellows of transmitter by positive pressure fairlead, the positive pressure fairlead extend into positive pressure sealing chamber Top；It is connected between the negative pressure sealing chamber and the negative pressure bellows of transmitter by negative pressure fairlead, the negative pressure fairlead is stretched Enter to the top of negative pressure sealing chamber.

Further, the tank body of the positive pressure sealing chamber and negative pressure sealing chamber is all made of hollow stainless pipe, hollow The upper and lower ends of stainless pipe carry out welding closure with white steel plate, are opened up on the white steel plate of upper end there are two hole, one Hole introduces pipe or negative pressure introducing pipe for being inserted into positive pressure, another hole is oil filler point, is blocked on oil filler point with bolt； It being opened up on the white steel plate of lower end there are two hole, a hole is used to be inserted into positive pressure fairlead or negative pressure fairlead, another Hole is to rush down oilhole, is blocked on rushing down oilhole with bolt.

Further, the end that the positive pressure introduces pipe is 10mm at a distance from positive pressure isolation pot bottom, and the negative pressure is drawn The end for entering pipe is 10mm at a distance from negative pressure isolation pot bottom.

Further, the end of the positive pressure fairlead at the top of positive pressure sealing chamber at a distance from be 10mm, the negative pressure draws The end of outlet pipe at the top of negative pressure sealing chamber at a distance from be 10mm.

Further, the positive pressure cutoff valve, negative-pressure stop valve pass through stainless steel tube respectively and connect with orifice plate；The orifice plate Between liquid medium pipe ends flange.

Compared with prior art, the positive beneficial effect of the utility model is:

1, No. 25 transformer oil in the electrical apparatus, are often used, the characteristics of transformer oil is in subzero 25 degree of ability Solidification, therefore, the environment for this ground temperature less than minus 20 degrees can be used No. 25 transformer oil and be situated between as instrument pilot Matter, to guarantee good operation of the instrument in winter under environment, while for steam tracing and electric tracing, more economically Environmental protection, once cause instrument to be unable to operate normally without worrying that steam deactivates or has a power failure.

2, using the transmitter defroster, instrument is stable, reliable, is not influenced by environment temperature,

Can be applied in other instrument, can be promoted in chemical industry completely, both for company save at This, also ensures the stable operation of instrument.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram of positive laminate section of transmitter defroster of the utility model；

Fig. 2 is a kind of transmitter defroster of the utility model and the connection schematic diagram of shut-off valve, transmitter.

Meaning representated by serial number in figure are as follows: 1. transmitters, 2. positive pressure sealing chambers, 3. negative pressure sealing chambers, 4. positive pressures introduce Pipe, 5. positive pressure fairleads, 6. negative pressure introduce pipe, and 7. negative pressure fairleads, 8. oil filler points, 9. rush down oilhole, 10. positive pressure cutoff valves, and 11. Negative-pressure stop valve, 12. orifice plates, 13. flanges, No. 14.25 transformer oil.

Specific embodiment

Embodiment one, as shown in Figure 1, a kind of transmitter defroster, including connecting pipe and setting are in transmitter 1 and cut-off Sealing chamber between valve, the sealing chamber is for holding No. 25 transformer oil 14；The sealing chamber includes positive pressure sealing chamber 2 and bears Sealing chamber 3 is pressed, the connecting pipe includes positive pressure connecting pipe and negative pressure connecting pipe, and the positive pressure connecting pipe includes that positive pressure introduces pipe 4 With positive pressure fairlead 5, the negative pressure connecting pipe includes that negative pressure introduces pipe 6 and negative pressure fairlead 7.

As shown in Fig. 2, introduce the connection of pipe 4 by positive pressure between the positive pressure sealing chamber 2 and positive pressure cutoff valve 10, it is described just Pressure introduces the lower part that pipe 4 extend into positive pressure sealing chamber 2；By just between the positive pressure sealing chamber 2 and the positive pressure bellows of transmitter 1 Fairlead 5 is pressed to connect, the positive pressure fairlead 5 extend into the top of positive pressure sealing chamber 2.The negative pressure sealing chamber 3 is cut with negative pressure It only introduces pipe 6 by negative pressure between valve 11 to connect, the negative pressure introduces the lower part that pipe 6 extend into negative pressure sealing chamber 3；The negative pressure Between sealing chamber 3 and the negative pressure bellows of transmitter 1 by negative pressure fairlead 7 connect, the negative pressure fairlead 7 extend into negative pressure every Top from tank 3.

Preferably, the tank body of the positive pressure sealing chamber 2 and negative pressure sealing chamber 3 is all made of hollow stainless pipe, this is hollow The outer diameter of stainless pipe is 108mm, a height of 220mm；In white steel of the upper and lower ends with a thickness of 4mm of hollow stainless pipe Plate carries out welding closure, is opened up on the white steel plate of upper end there are two hole, the aperture in two holes is 14mm, one of hole Pipe 4 or negative pressure are introduced for being inserted into positive pressure and introduces pipe 6, the positive pressure introduce pipe 4 end and 2 bottom of positive pressure sealing chamber away from It is 10mm at a distance from 3 bottom of negative pressure sealing chamber from the end for 10mm, the negative pressure introducing pipe 6, another hole is oil filler point 8, the nut that a φ 14mm is welded on the top in hole is blocked after having filled No. 25 transformer oil 14 with bolt.Under being located at Opened up on the white steel plate at end there are two hole, the aperture in two holes is 14mm, one of hole for be inserted into positive pressure fairlead 5 or Person's negative pressure fairlead 7, the end of the positive pressure fairlead 5 are 10mm at a distance from 2 top of positive pressure sealing chamber, and the negative pressure is drawn The end of pipe 7 is 10mm at a distance from 3 top of negative pressure sealing chamber, and another hole is to rush down oilhole 9, and a φ is welded on the top in hole The nut of 14mm, is blocked with bolt, after No. 25 transformer oil 14 operation in sealing chamber is 1 year full, passes through rushing down for bottom Oilhole 9 discharges No. 25 transformer oil 14 in its sealing chamber, more renew No. 25 transformer oil 14.

The positive pressure cutoff valve 10, negative-pressure stop valve 11 are connect by stainless steel tube with orifice plate 12 respectively；The orifice plate 12 Between liquid medium pipe ends flange 13.When needing transmitter 1 to measure liquid medium, positive 10 He of pressure cutoff valve is opened Negative-pressure stop valve 11；When not needing the measurement liquid medium of transmitter 1, positive pressure cutoff valve 10 and negative-pressure stop valve 11 are closed.

Working principle is as follows:

Since the density of No. 25 transformer oil 14 is 895kg/m³, less than the density of water, therefore 25 are filled in sealing chamber After number transformer oil 14, through operation after a period of time, if there is processing medium in sealing chamber, the condensed water that becomes such as steam or Person's recirculated water etc., since No. 25 14 density of transformer oil of its density ratio are big, so, very small part is had in the bottom of sealing chamber Processing medium, sealing chamber top or small No. 25 transformer oil 14 of density, for this purpose, the fairlead isolation by distance in sealing chamber The distance of tank top is 10mm, purpose be exactly for all No. 25 transformer oil 14 in the connecting pipe before guaranteeing transmitter 1, To guarantee that instrument is not damaged by frost.

The above-mentioned description to embodiment is for that can understand and apply this practical convenient for those skilled in the art It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein General Principle be applied in other embodiments without having to go through creative labor.Therefore, those skilled in the art are according to this The announcement of utility model, does not depart from improvement that the utility model scope is made and modification all should be in the protection of the utility model Within the scope of.

Claims (5)

1. a kind of transmitter defroster, which is characterized in that including connecting pipe and be arranged between transmitter and shut-off valve every From tank, the sealing chamber is for holding No. 25 transformer oil；The sealing chamber includes positive pressure sealing chamber and negative pressure sealing chamber, described Connecting pipe includes positive pressure connecting pipe and negative pressure connecting pipe, and the positive pressure connecting pipe includes that positive pressure introduces pipe and positive pressure fairlead, institute Stating negative pressure connecting pipe includes that negative pressure introduces pipe and negative pressure fairlead；Pass through positive pressure between the positive pressure sealing chamber and positive pressure cutoff valve Pipe connection is introduced, the positive pressure introduces the lower part that pipe extend into positive pressure sealing chamber；The negative pressure sealing chamber and negative-pressure stop valve it Between pipe connection introduced by negative pressure, the negative pressure introduces the lower part that pipe extend into negative pressure sealing chamber；The positive pressure sealing chamber and change It send and is connected between the positive pressure bellows of device by positive pressure fairlead, the positive pressure fairlead extend into the top of positive pressure sealing chamber；Institute It states and is connected between negative pressure sealing chamber and the negative pressure bellows of transmitter by negative pressure fairlead, the negative pressure fairlead extend into negative pressure The top of sealing chamber.

2. transmitter defroster according to claim 1, which is characterized in that the positive pressure sealing chamber and negative pressure sealing chamber Tank body be all made of hollow stainless pipe, carry out welding closure, position with white steel plate in the upper and lower ends of hollow stainless pipe In being opened up on the white steel plate of upper end there are two hole, for being inserted into, positive pressure introduces pipe or negative pressure introduces pipe, another hole in a hole For oil filler point, blocked on oil filler point with bolt；It is opened up on the white steel plate of lower end there are two hole, a hole is used to insert Enter positive pressure fairlead or negative pressure fairlead, another hole is to rush down oilhole, is blocked on rushing down oilhole with bolt.

3. transmitter defroster according to claim 1, which is characterized in that the positive pressure introduces end and the positive pressure of pipe The distance that pot bottom is isolated is 10mm, and the end that the negative pressure introduces pipe is 10mm at a distance from negative pressure isolation pot bottom.

4. transmitter defroster according to claim 1, which is characterized in that the end of the positive pressure fairlead and positive pressure Distance at the top of sealing chamber is 10mm, the end of the negative pressure fairlead with negative pressure sealing chamber at the top of at a distance from for 10mm.

5. transmitter defroster according to claim 1, which is characterized in that the positive pressure cutoff valve, negative-pressure stop valve It is connect respectively by stainless steel tube with orifice plate；The orifice plate is located between liquid medium pipe ends flange.