CN108646102A - A kind of dehumidifier for the dehumidifying of power frequency electric field detecting instrument goes out pneumatic module - Google Patents

Abstract

The invention relates to a dehumidifier air outlet assembly used for dehumidification of a power frequency electric field detection instrument. The power frequency electric field detection instrument includes a detection probe, and the dehumidifier air outlet assembly includes an air outlet head connected to the dehumidifier air outlet through a hose. There is a hard tube connected between the tubes; it also includes a clamping assembly, the clamping component includes a first clamping part, a second clamping part and a support rod, the support rod is laterally fixed at the joint between the hard tube and the hose, and the first clamping The first clamping part and the second clamping part are symmetrically arranged at both ends of the support rod and form a space for clamping the structure below the detection probe; the first clamping part is provided with a first sliding rod, the supporting rod is hollow, and the first sliding rod is covered with a second A spring extends into the inside of the support rod together with the first spring, and the first spring is limited between the end of the first slide rod and the first slide rod insertion opening of the support rod. Compared with the prior art, the invention is convenient to connect the air outlet of the dehumidifier with the probe of the power frequency electric field strength measuring instrument, and has strong applicability.

Description

A dehumidifier outlet assembly used for dehumidification of a power frequency electric field detection instrument

technical field

The invention relates to the technical field of environmental engineering, in particular to a dehumidifier air outlet component used for dehumidification of a power frequency electric field detection instrument.

Background technique

The electromagnetic environmental impact factors of high-voltage transmission lines include power frequency electric field and power frequency magnetic field, among which the power frequency electric field plays a decisive role in the height of the transmission line. Existing AC power frequency electric field strength measuring instruments generally calculate the relevant electric field strength by measuring the induced current between capacitor plates. However, in a high-humidity environment, a water film is formed on the surface of the measuring instrument and a large leakage current is easily formed between the capacitor plate and the plate, so that the measured induced current value is full of false components and is not credible, and the measured value in the high-humidity environment The value of power frequency electric field strength is also inaccurate. It is confirmed by the measured data that in the monitoring of power frequency electric field strength in power transmission and transformation projects, the accuracy of the power frequency electric field strength monitoring system composed of sensors, signal transmission lines, display devices, and brackets is affected by air humidity when the relative air humidity is greater than 50%. The influence is very large, resulting in the measured value of the power frequency electric field strength up to 2 to 8 times the normal value.

The prior art shows that in the process of measuring the power frequency electric field strength, a dehumidifier can be used to dehumidify the power frequency electric field strength measuring probe. High humidity air layer isolation. At present, although the air outlet of the dehumidification device and the probe of the power frequency electric field strength measuring instrument can be connected through a hose, there is no specific connection device. In actual use, it needs to be installed temporarily according to different instruments, which is inconvenient to use, and the wind effect is poor only through the hose. , low dehumidification efficiency.

Contents of the invention

The object of the present invention is to provide a dehumidifier air outlet assembly for dehumidification of a power frequency electric field detection instrument in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A dehumidifier air outlet assembly for dehumidification of a power frequency electric field detection instrument, comprising an air outlet head connected to the air outlet of the dehumidifier through a hose, a hard pipe is connected between the air outlet head and the hose; and a clamping assembly, the The clamping assembly includes a first clamping part, a second clamping part and a support rod, the support rod is laterally fixed at the joint between the hard tube and the hose, and the first clamping part and the second clamping part The first clamping part is provided with a first sliding rod, the supporting rod is hollow, and the first sliding rod is covered with a first spring and extends into the supporting rod together with the first spring. Inside, the end of the first sliding rod is provided with a first spring seat, and the first spring is limited between the first spring seat and the first sliding rod insertion port of the support rod.

Preferably, the middle part of the air outlet head is bent toward the clamping assembly at a set angle, so that the air outlet of the air outlet head faces obliquely upward.

Preferably, the width of the air outlet of the air outlet head is greater than the width of the joint between the air outlet head and the hard pipe.

Preferably, the second clamping portion is fixedly connected to the support rod.

Preferably, the second clamping part is provided with a second sliding rod, the second sliding rod is covered with a second spring and extends into the support rod together with the second spring, and the end of the second sliding rod is provided with a first Two spring seats, the second spring is limited between the second spring seat and the second sliding rod insertion port of the support rod, and the first sliding rod and the second sliding rod are separated by a blocking block in the support rod.

Preferably, the hard pipe is composed of several telescopic joints.

Compared with the prior art, the present invention has the following advantages:

1. When connecting the air outlet of the dehumidifier to the probe of the power frequency electric field strength measuring instrument, you only need to open the clamping part of the fixing device, and place the structure under the detection probe, such as the main unit of the power frequency electric field detection instrument or the bracket fixing seat, etc. In, so that the gas outlet head is fixed under the detection probe, easy to use and install, and suitable for most power frequency electric field detection instruments.

2. The middle part of the air outlet head is bent to the direction of the clamping assembly to set the angle, so that the air outlet of the air outlet head is directed upwards, so that more drying air is blown to the surface of the detection probe, and the dehumidification efficiency is improved.

3. The hard tube adopts a retractable structure, which can elongate the hard tube when it encounters a long rod under the detection probe, so that the air outlet is closer to the bottom of the probe to ensure the dehumidification effect.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a top perspective view of the clamping assembly in Embodiment 1;

Fig. 3 is a top perspective view of the clamping assembly in the second embodiment.

Markings in the figure: 1. Air outlet head, 2. Hard pipe, 3. Flexible hose, 4. Support rod, 5. The first clamping part, 6. The second clamping part, 7. The first sliding rod, 8. The first Spring seat, 9, the first spring, 10, the second slide rod, 11, the second spring seat, 12, the second spring, 13, the resistance block.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

Embodiment one

As shown in Figure 1, a dehumidifier outlet assembly used for dehumidification of power frequency electric field detection instruments is suitable for long-term monitoring of power frequency electric field strength outdoors, and it is convenient to connect the air outlet of the dehumidifier to the power frequency electric field detection instrument Check below the probe.

The air outlet assembly of the dehumidifier includes an air outlet head 1 connected to the air outlet of the dehumidifier through a hose 3 , and a hard pipe 2 is connected between the air outlet head 1 and the hose 3 . The width of the gas outlet of the gas outlet head 1 is greater than the width of the connection between the gas outlet head 1 and the hard pipe 2, and is equivalent to the width of a general detection probe, so that the dry gas can cover most of the detection probe surface as much as possible.

The air outlet head 1 is fixed under the detection probe through a clamping assembly, which is very convenient for installation and disassembly. The clamping assembly includes a first clamping part 5 , a second clamping part 6 and a support rod 4 . The support rod 4 is fixed laterally at the junction of the hard tube 2 and the hose 3, and the first clamping part 5 and the second clamping part 6 are symmetrically arranged at both ends of the support rod 4 and form a structure for clamping the detection probe below The space should be smaller than the width of the generally blessed object. The structure below the detection probe is generally the detection host. Sometimes the detection probe is fixed on the bracket alone. At this time, the fixing seat on the bracket below the detection probe can be used as the object to be clamped. Select the clamping object according to the actual situation. In this embodiment, the first clamping part 5 is a sliding part, and the second clamping part 6 is a fixing part, as shown in FIG. 2 . The first clamping part 5 is provided with a first sliding rod 7, the supporting rod 4 is hollow, the first sliding rod 7 is covered with a first spring 9 and extends into the supporting rod 4 together with the first spring 9, the end of the first sliding rod 7 A first spring seat 8 is provided, and the first spring 9 is limited between the first spring seat 8 and the opening of the first sliding rod 7 on the support rod 4 . The distance between the two clamping parts can be increased by pulling the first sliding rod 7, and after it is greater than the width of the clamping object, the clamping object can be clamped by the elastic restoring force of the spring, so that the air outlet 1 can be fixed on the detection probe below.

The middle part of the air outlet head 1 is bent to the direction of the clamping assembly to set the angle. As shown in Figure 1, the air outlet of the air outlet head 1 faces the detection probe obliquely above, so that more drying air is blown to the surface of the detection probe , improve dehumidification efficiency.

In this embodiment, the hard pipe 2 is composed of several telescopic joints, which can elongate the hard pipe 2 when the rod under the detection probe is long, so that the air outlet is closer to the bottom of the probe to ensure the dehumidification effect.

In this embodiment, there are two parallel supporting rods 4, and two first sliding rods 7 are correspondingly provided.

Embodiment two

As shown in FIG. 3 , in this embodiment, both the second clamping part 6 and the first clamping part 5 are sliding parts, which can make the stretching of the clamping part easier. The specific structure is shown in Figure 3. The second clamping part 6 has the same structure as the first clamping part 5, and is provided with a second sliding rod 10. The second sliding rod 10 is covered with a second spring 12 and extends into it together with the second spring 12. To the inside of the support rod 4, the end of the second sliding rod 10 is provided with a second spring seat 11, and the second spring 12 is limited between the second spring seat 11 and the extension port of the second sliding rod 10 on the support rod 4. The first sliding rod 7 and the second sliding rod 10 are separated by a blocking block 13 in the support rod 4 .

Other structures of the air outlet assembly of the dehumidifier in this embodiment are the same as those in Embodiment 1.

Claims (6)

1. it is a kind of for power frequency electric field detecting instrument dehumidifying dehumidifier go out pneumatic module, which is characterized in that including by hose with The outlet head of dehumidifier air outlet connection, hard tube is connected between the outlet head and hose；Further include clamp assemblies, the clamping Component includes the first clamping part, the second clamping part and supporting rod, and the supporting rod is secured transverse to the company of the hard tube and hose Place is met, first clamping part and the second clamping part are symmetrically set in the both ends of supporting rod；First clamping part is equipped with first and slides Pole, the supporting rod is hollow, and first litter is cased with the first spring and is extend into supporting rod together with the first spring, described The end of first litter is equipped with the first spring base, first spring retainer in first spring base and supporting rod first Litter stretches between mouth.

2. a kind of dehumidifier for the dehumidifying of power frequency electric field detecting instrument according to claim 1 goes out pneumatic module, feature It is, the middle part of the outlet head bends set angle to the direction of clamp assemblies, makes the gas outlet of outlet head towards oblique upper.

3. a kind of dehumidifier for the dehumidifying of power frequency electric field detecting instrument according to claim 1 goes out pneumatic module, feature It is, the width of the gas outlet of the outlet head is more than the width of outlet head and hard tube junction.

4. a kind of dehumidifier for the dehumidifying of power frequency electric field detecting instrument according to claim 1 goes out pneumatic module, feature It is, second clamping part is fixedly connected with the supporting rod.

5. a kind of dehumidifier for the dehumidifying of power frequency electric field detecting instrument according to claim 1 goes out pneumatic module, feature It is, second clamping part is equipped with the second litter, and second litter is cased with second spring and is stretched into together with second spring Into supporting rod, the end of second litter is equipped with second spring seat, and the second spring is limited in the second spring seat And the second litter of supporting rod stretches between mouth, first litter and the second litter have stop block to separate in supporting rod.

6. a kind of dehumidifier for the dehumidifying of power frequency electric field detecting instrument according to claim 1 goes out pneumatic module, feature It is, the hard tube is made of the socket of several telescopic joints.