CN209857412U

CN209857412U - Mining refrigerating device

Info

Publication number: CN209857412U
Application number: CN201920343174.6U
Authority: CN
Inventors: 刘元后
Original assignee: Shandong Bofeiming Technology Co Ltd
Current assignee: Shandong Bofeiming Technology Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2019-12-27
Anticipated expiration: 2029-03-18

Abstract

The utility model provides a mining refrigerating plant relates to refrigeration plant technical field, has solved the technical problem that mining refrigerating plant is bulky, weight is big. The mining refrigerating device comprises a skid-mounted base, a power distribution control box, a semi-closed compressor, a condenser and an air cooler, wherein the semi-closed compressor, the condenser and the air cooler are sequentially connected through pipelines to form closed circulation of a coolant; an explosion-proof electromagnetic valve, a thermal expansion valve and a liquid separator are sequentially arranged between the condenser and the air cooler; the heat exchanger in the air cooler is in a copper pipe aluminum fin structure. The utility model has the characteristics of small, light in weight, operation are reliable, portable, convenient maintenance.

Description

Mining refrigerating device

Technical Field

The utility model belongs to the technical field of the refrigeration plant technique and specifically relates to a mining refrigerating plant is related to.

Background

The mine heat damage means that the temperature of the environment in a mine exceeds the temperature which can be tolerated by the normal heat balance of a human body, so that the labor efficiency is reduced, the accident frequency is increased, the health is damaged, and even the heatstroke shock is caused. The main factors influencing the temperature change under the mine are as follows: 1. the temperature of the mine inlet air; 2. compression and expansion of downhole wind currents; 3. heat dissipation of the electromechanical device; 4. oxidation exotherms; 5. human body heat dissipation and dampness dissipation; 6. and (4) radiating by using underground hot water. 7. Heat exchange between the surrounding rock and the downhole air. In order to prevent the heat damage of the mine, the mode of cooling the mine is commonly adopted at present to improve the ventilation of the mine and the cooling of a refrigerating device; and the cooling of the refrigerating device is an effective measure for preventing and treating the high temperature of the mine.

The applicant has found that the prior art has at least the following technical problems:

the existing mining refrigerating device comprises an open compressor, a condenser, an evaporator, a power distribution control box, a throttle valve, an air cooler, a circulating water system and the like which are arranged in a split manner, when the mining refrigerating device is used on site, all equipment parts need to be transported to a mine underground use site, and the mining refrigerating device is assembled and used, when the mining refrigerating device needs to be continuously disassembled, assembled and moved along with the change of an operation position, and due to the split arrangement, the mining refrigerating device is complex in disassembly and assembly, wastes time and labor, increases the difficulty of underground installation, and needs to be equipped with special debugging equipment and tools; in addition, as the cooling medium used in the prior art is water, the water in the equipment needs to be emptied when the refrigerating device is moved every time, and then the cooling water is poured into the equipment after the refrigerating device is moved in place, so that the operation steps of the refrigerating device are increased, and the time and the labor are wasted; the split type mounting structure also enables the mining refrigerating device to be large in size and weight; the split type equipment is connected through a pipeline, the pipeline distance is long, the cold quantity loss is large, and the overall efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mining refrigerating plant to solve the mining refrigerating plant that exists among the prior art technical problem bulky, that weight is big.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of mining refrigerating plant, including sled dress base, distribution control box, loop through semi-enclosed compressor, condenser and the air cooler that the pipe connection formed coolant closed circulation, sled dress base bottom is provided with the crawler shoe structure, the air cooler with the condenser sets up side by side on the sled dress base, semi-enclosed compressor sets up the air cooler top, the distribution control box sets up air cooler top and with semi-enclosed compressor sets up side by side.

As a further improvement of the utility model, the condenser with still set gradually explosion-proof solenoid valve and thermal expansion valve between the air cooler.

As a further improvement of the utility model, the thermostatic expansion valve and still be provided with the knockout between the air cooler.

As a further improvement of the utility model, the distance between the inlet of the thermostatic expansion valve and the air cooler is not more than 1000 mm.

As a further improvement of the utility model, the condenser is a shell-and-tube heat exchanger, the diameter of the shell-and-tube heat exchanger is 200 and 400mm, and the length is 1-3 m.

As a further improvement of the utility model, the semi-enclosed compressor is a double-screw compressor, the refrigerating output of the double-screw compressor is 100-charge 500 kW.

As a further improvement, the air cooler comprises a shell and a spiral fin type heat exchanger in the shell, the spiral fin type heat exchanger comprises an inner tube and radiating fins, the inner tube is made of a copper tube, and the radiating fins are aluminum spiral radiating fins.

As a further improvement of the utility model, the circulating refrigerant in the inner pipe is Freon.

As a further improvement of the present invention, the number of the air coolers is one or more, all the air coolers with the condensers are connected in parallel, and every the air coolers with all be provided with explosion-proof solenoid valve, thermostatic expansion valve and knockout between the condensers.

As a further improvement of the utility model, the casing is the cuboid structure, its top side, bottom side and is close to one side of condenser and keeping away from one side of condenser all is provided with the shell plate, and the orientation one side of condenser and keeping away from one side of condenser the shell plate with the casing is for dismantling the connection.

Compared with the prior art, the utility model following beneficial effect has:

the utility model discloses a set up the refrigerating plant into whole sled dress formula, can wholly remove, need not to carry out repeated dismouting to each part at the scene, improve work efficiency, simplify the transportation flow to through set up the crawler shoe structure below sled dress base, make the refrigerating plant conveniently drag the transfer; the semi-closed compressor has the characteristics of small volume and light weight; the air cooler adopts the structural form of the copper inner tube and the aluminum fins, so that the heat exchange effect of the air cooler is ensured, the weight of the air cooler is greatly reduced, the copper material consumption is reduced, and the product cost is reduced; by arranging a plurality of groups of modular air coolers, the modular air coolers can be used interchangeably or can be used for each other, so that the use flexibility and the application range of the product are improved; the detachable shell plates are arranged on the two sides of the shell of the air cooler, so that the air cooler is convenient to maintain and clean.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the mining refrigeration unit of the present invention;

fig. 2 is a left side view of the mining refrigeration unit of the present invention;

fig. 3 is a flow chart of the mining refrigeration device of the present invention.

In the figure 1, a skid-mounted base; 2. a power distribution control box; 3. a semi-hermetic compressor; 4. a condenser; 5. an air cooler; 6. an explosion-proof solenoid valve; 7. a thermostatic expansion valve; 8. a liquid distributor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a mine refrigerating device, which is a special product for high-temperature heat damage treatment of mines (mine underground air conditioner); the mechanical refrigeration principle is utilized for cooling and dehumidifying the air flow under the mine, and the working environment of a working face is improved. The mining refrigerating device comprises a skid-mounted base 1, a power distribution control box 2, a semi-closed compressor 3, a condenser 4 and an air cooler 5 which are sequentially connected through pipelines to form closed circulation of a coolant, wherein a sliding shoe structure is arranged at the bottom of the skid-mounted base 1, and the sliding shoe structure can be used as long as the sliding shoe structure can facilitate the displacement of the mining refrigerating device; air cooler 5 and condenser 4 set up side by side on sled dress base 1, it needs to explain, in the utility model discloses in, condenser 4 and air cooler 5 are located sled dress base 1 top in tandem, semi-enclosed compressor 3 sets up in air cooler 5 top, and be located sled dress base 1 left side, distribution control box 2 sets up in air cooler 5 top and sets up side by side with semi-enclosed compressor 3, distribution control box 2 is located sled dress base 1's anterior right side, semi-enclosed compressor 3 is located sled dress base 1's anterior left side, other accessories are all in above-mentioned part position between relatively. The bottom is designed with a sliding shoe structure, the dragging and transferring of the sheet matching control box 2 are facilitated, the control of the sheet matching control box is realized by programming products in the prior art, and the problem of a control system after the relative position of the refrigeration device is adjusted is solved by inputting design working condition points again. In the novel usage, the distribution control box 2 is a box body with explosion-proof requirements in the mine industry, and is provided with perfect internal electrical accessories and control programs, and external operation buttons and a visual display screen; and the operation without opening the cover is realized. The internal electrical accessories are all explosion-proof products.

The utility model provides a mining refrigerating plant has realized that all parts are in an overall dimension through the special sled dress base of global design, under the condition of the transportation of being convenient for and removal installation, exempt from the debugging step, just can use after taking one's place to adopt semi-enclosed compressor, sled dress base sets up the crawler shoe structure, makes refrigerating plant have characteristics small, light in weight, operation reliable, portable, convenient maintenance.

As an alternative embodiment, as shown in fig. 2, an explosion-proof solenoid valve 6 and a thermal expansion valve 7 are further disposed between the condenser 4 and the air cooler 5 in sequence. The explosion-proof electromagnetic valve 6 is controlled by an explosion-proof electromagnetic coil and is automatically controlled to be closed before the thermal expansion valve 7.

Because the heat exchange tubes in the air cooler 5 are in a multi-row and multi-column structure, in order to ensure that the flow of the refrigerant entering each row of heat exchange tubes is uniform, a liquid separator 8 is also arranged between the thermal expansion valve 7 and the air cooler 5.

Specifically, in the present invention, the liquid separator 8 is a liquid separator 8 that flows into a seven-way outflow type all the way.

Specifically, the distance between the thermostatic expansion valve 7 and the inlet of the air cooler 5 is not more than 1000 mm.

As an alternative embodiment, the condenser 4 is a shell-and-tube heat exchanger with a diameter of 200 and 400mm and a length of 1-3 m. Specifically, the diameters of the shell-and-tube heat exchangers are respectively 200mm, 250mm, 300mm, 350mm or 400 mm; the length is 1m, 2m or 3m, and the actual specification can be selected according to the field requirement.

As an alternative embodiment, the semi-hermetic compressor 3 is a twin-screw compressor, and the refrigerating capacity of the twin-screw compressor is 100-500 kW. It should be noted that the utility model provides a semi-enclosed compressor has chooseed the refrigeration trade product for use, through outside market purchase, and the electrical part has optimized, all chooses explosion-proof product for use with the electrical part in order to satisfy the mine requirement in the pit, has solved energy control, oil circuit lubrication, terminal box explosion-proof scheduling problem. Specifically, the refrigerating capacity of the double-screw compressor is 100kW, 200kW, 300kW, 400kW or 500 kW; when the double-screw compressor is purchased, a product with the functions of energy regulation, oil circuit lubrication and cooling protection is selected.

As an alternative embodiment, the air cooler 5 includes a housing, and a spiral fin type heat exchanger disposed in the housing, where the spiral fin type heat exchanger includes an inner tube and fins, the inner tube is made of copper tube, and the fins are aluminum spiral fins. The outer side of the radiating fin passes through the air flow to be cooled. Further, the circulating refrigerant in the inner pipe is freon. The utility model discloses in, the mode of copper pipe aluminium system fin is chooseed for use to spiral fin formula heat exchanger, and the size is little, light in weight, and with sled dress base 1 global design, both shortened refrigerant circulation pipeline distance, guarantee structural strength again.

As an alternative embodiment, as shown in fig. 3, the number of the air coolers 5 is one or more, all the air coolers 5 are connected in parallel with the condenser 4, and an explosion-proof solenoid valve 6, a thermostatic expansion valve 7 and a liquid separator 8 are arranged between each air cooler 5 and the condenser 4. It should be noted that, in the present invention, the number of the air coolers 5 is three, and the air coolers are designed into 3 groups of modules. The spiral finned heat exchangers arranged in the shell of each air cooler 5 comprise 126 spiral finned heat exchangers, the 126 spiral finned heat exchangers are divided into 7 rows and 18 rows, two adjacent rows of spiral finned heat exchangers are arranged in a staggered mode, each air cooler 5 further comprises a liquid inlet branched pipe, a liquid outlet main pipe and a liquid outlet branched pipe, the liquid inlet branched pipes and the liquid outlet branched pipes are vertically arranged, the number of the liquid inlet branched pipes and the number of the liquid outlet branched pipes are 7, two ends of each row of spiral finned heat exchangers are respectively communicated with the liquid inlet branched pipe and the liquid outlet branched pipe, the bottoms of all the liquid inlet branched pipes and all the liquid outlet branched pipes are of sealing structures, the tops of all the liquid inlet branched pipes are communicated with seven outlets of the liquid separator 8, and the tops of all the liquid outlet branched pipes are communicated with a.

As an alternative embodiment, the casing is a rectangular parallelepiped structure, and has shell plates disposed on the top side, the bottom side, and the side close to the condenser 4 and the side far from the condenser 4, and the shell plates on the side facing the condenser 4 and the side far from the condenser 4 are detachably connected to the casing. The concrete detachable connection mode comprises clamping column clamping groove connection, buckle connection, screws and the like, and the detachable connection mode which enables the shell plate to be detached from the shell body is required to fall into the protection range of the shell plate.

As an optional implementation mode, the skid-mounted base 1 is designed according to the requirements, steel structures are selected and formed by welding square pipes, the surface is subjected to anti-corrosion treatment,

the mining refrigerating device is also assisted with testing equipment such as a water pump, a valve, a pipeline, a fan, a motor and the like, and industrial testing of refrigerating capacity is realized. These parts are for realizing this mining refrigerating plant's functional verification, do not describe in this patent.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a mining refrigerating plant, its characterized in that includes sled dress base, distribution control box, loops through semi-enclosed compressor, condenser and the air cooler that the pipe connection formed coolant closed circulation, sled dress base bottom is provided with the crawler shoe structure, the air cooler with the condenser sets up side by side on the sled dress base, semi-enclosed compressor sets up the air cooler top, the distribution control box sets up the air cooler top and with semi-enclosed compressor sets up side by side.

2. The mining refrigeration device according to claim 1, wherein an explosion-proof solenoid valve and a thermostatic expansion valve are further arranged between the condenser and the air cooler in sequence.

3. A mining refrigeration unit as claimed in claim 2 in which a liquid separator is also provided between the thermostatic expansion valve and the air cooler.

4. A mining refrigeration unit according to claim 3, in which the distance between the thermostatic expansion valve and the inlet of the air cooler is no more than 1000 mm.

5. A mining refrigeration device as claimed in claim 1 or 2 or 3 or 4, characterised in that the condenser is a shell and tube heat exchanger having a diameter of 200 and 400mm and a length of 1-3 m.

6. The mining refrigeration device as claimed in claim 1 or 2 or 3 or 4, wherein the semi-hermetic compressor is a twin-screw compressor, and the refrigerating capacity of the twin-screw compressor is 100-500 kW.

7. The mining refrigeration device according to claim 1, 2, 3 or 4, wherein the air cooler comprises a shell and a spiral fin type heat exchanger arranged in the shell, the spiral fin type heat exchanger comprises an inner pipe and a radiating fin, the inner pipe is made of a copper pipe, and the radiating fin is an aluminum spiral radiating fin.

8. A mining refrigeration unit as claimed in claim 7, in which the circulating refrigerant in the inner tube is freon.

9. The mining refrigeration device according to claim 7, wherein the number of the air coolers is one or more, all the air coolers are connected with the condenser in parallel, and an explosion-proof solenoid valve, a thermal expansion valve and a liquid separator are arranged between each air cooler and the condenser.

10. A mining cold appliance according to claim 8 or 9, wherein the housing is of rectangular parallelepiped configuration, with shell plates provided on each of the top, bottom and sides thereof adjacent to and remote from the condenser, and the shell plates on the sides thereof facing and remote from the condenser are detachably connected to the housing.